STAR-CCM+ enhancements in New features and€¦ · • The use of user-defined color maps as default improves consistency across simulations and helps ... remeshing • Overset meshing

Siemens PLM Software

New features andenhancements inSTAR-CCM+Discover better designs, faster!

Version12.06 www.siemens.com/mdx

New Features and Enhancements inSTAR-CCM+ v12.06

Technology Experience ProductivityDeliver new modeling capabilities Make technology accessible Get simulations done fasterExpose advanced technologies Save engineering time Explore more designsElevate confidence with results Streamline simulation workflows Increase your efficiency

Top new features and enhancements for this release are:• STAR-ICE• Zip operation• Complex Chemistry dynamic mechanism reduction• DEM Capsule Primitives1

• Mass flow outlet for coupled solver1

• LMS Virtual.Lab & Transient CGNS export• Filling monitors from Simh data1

• Collocated report data

1 Posted on IdeaStormA total of 28 new features and enhancements from IdeaStorm in this version.

New features and enhancements in STAR-CCM+ | Version 12.06

October 2017 1

Enhancements to STAR-CCM+ v12.06 are presented by category:PlatformCAD IntegrationGeometryMeshCAE IntegrationPhysicsDesign ExplorationData AnalysisApplication Specific ToolsUser Guide

PlatformDeployment• Installation changes

• Installations now delivered as .zip file on all platforms• To start the install process:

- On Windows, run the .bat file- On Linux, run the .sh file

• License server manager• For new installs, the Flexera lmgrd application is now installed as the license server manager

- lmgrd is generally more robust than lmadmin- Easier to troubleshoot, maintain and upgrade

• Additional installer improvements• Option to select the Power-on-Demand server• Option to accept multiple license servers as a license server triad• Automatically detects older license servers

• Newly certified operating systems• Windows 10 Creators Update• openSUSE Leap 42.2• RHEL/CentOS 6.9• Scientific Linux 6.9 (supported, not certified)

• Retired operating systems• RHEL/CentOS 6.7• Scientific Linux 6.7• RHEL/CentOS 7.0• Scientific Linux 7.0• openSUSE 12.3

• Newly certified Message Passing Interfaces (MPI)• IBM/Platform MPI 9.1.4.4

• Windows support for more than 32 cores per node• Intel 2017.2

• Improved support for Omni-Path interconnect


October 2017 2

• Retired Message Passing Interfaces (MPI)• Intel MPI 5.0.3• Open MPI 1.8.5 - 2.0.0 is not supported, due to a critical issue that prevents repeatable results

User Experience• Support for expressions in object properties D1068

• Improves ease of use and reduces likelihood of typographical and transposition errors• Change multiple tree inputs based on a single common expression• Expose properties to enable design sweeps

• Expressions (parameters, field functions or inline expressions) can now be used to specify• Target surface size and surface growth rate

- Automatic check for out-of-range values- Error pop-ups provide guidance on how to fix problems

• Monitor sliding window size D2821, D4078

• Improved decimal format display D556

• Reduces visual clutter and improves readability of numeric values in user interface• Decimal format applied as a global preference from top level menu Tools > Options > Environment


October 2017 3

• Underlying full numerical precision is retained and can be displayed as a hover tip• No decimal format is the default behavior, retaining backward compatibility• Several preset format options are available in addition to being fully customizable

• Specification of user-defined colormaps as the default D3928• Create standardized effective visualizations quicker

• The use of user-defined color maps as default improves consistency across simulations and helpsensure best practice

• Re-use new and existing .sim files without export/import or copy/paste across simulations• Specification of the default colormap can be done via

• Top level menu, Tools > Visualization > Default Color Map, or• Right mouse menu on target in Tools > Color Maps

• Default user-defined color map is stored outside the simulation• Restoration of default color map in later versions is automatic

• Improved keyboard shortcuts for tree navigation D569• Faster navigation enabled between and across top level user interface components

• Includes simulation and custom trees, property sheets and comparison view• Works with Design Manager projects• Builds on existing keyboard shortcuts

• Current keyboard shortcuts resolve several known shortcomings of not being able to navigate back from• Property sheets• Output window


October 2017 4

• Filtering enhancements• Composite parts can now be included in filters based on type of object

• Make composite assemblies easier to manage- Identify non-composite objects within composite assemblies

• Filters can exclude on the basis of objects being either children or parents relative to other objects- Provides additional selectivity based on the hierarchical relationship between objects

* Distinguish between original and inherited parts

• Workflow improvement for tree node comparison• Basic comparisons between two tree nodes are streamlined

• Specific comparisons save time by not having to re-navigate the node tree


October 2017 5

• Time to re-create selections/specifications is reduced• Side-by-side display/manipulation is less error prone• Effort to create a simple comparison now reduced to a single mouse click

CAD IntegrationCAD-Clients• CAD-Clients compatible with both first and update releases in a single major version

• Increases flexibility of deployment• Useful to

• Avoid incompatibility when upgrading only STAR-CCM+ update version• Simplify installation (no need to re-install CAD-Clients after each update of STAR-CCM+ within same

version)


October 2017 6

CAD-Exchange• Parasolid pass through

• Reduces import time for large models• This applies to files in the following formats

• NX• Solid Edge• SolidWorks• JT-XT

• If a file contains a Parasolid-based definition of the geometry, STAR-CCM+ now directly imports the Parasolid definition. This new behaviorcan also reduce translation errors

• Improved CAD repair during import• New healing routines have been added to the Repair invalid bodies option during CAD import that

reduces errors in imported geometry• Note: Import time may be up to 1.5x longer as a result of additional healing

Geometry3D-CAD• Import and replace sketch

• Improves ability to explore different designs• Combine tabular and user created sketches by importing a curve into an existing sketch

• Replace a spline with a new one from a .csv file to enable tabular based design changes• Right-click any sketch in the feature tree and import a .csv into the existing sketch• Right-click any spline within a sketch and replace it

• Endpoints are matched to ensure robust regeneration of the model when the number of internal pointschange

• Projection of 2D and 3D sketches• Projection direction, within sketch imprint command, can be defined by

• Proximity• Normal/reverse to the sketch (2D Only)• User defined direction or reference axis

• Sketches can be projected onto individual faces or bodies


October 2017 7

• Creation of single sheet body from multiple solid faces D3310• Reduces number of clicks and improves ease of use

• Now the default for the create sheets feature• Historically, when multiple faces were selected and converted to sheets, one sheet body was created per

face• You can mimic the old behavior as an option

• Improved bridge surface• You can now bridge co-planar profiles that contain inner loops or convex shapes• When bridging co-planar edges the new bridge surface places a plane on the edges then trims the plane• Provides a much more robust method to fill sophisticated gaps


October 2017 8

Parts• Zip operation

• Allows for parts to be automatically sewn togetherenabling faster and more local design changes

• You can sew free or selected edges within a part, orbetween parts, either as:• Discrete part generating (creates a resulting new

part)• Discrete description generating (creates a new

description of the input parts)• If parts are remeshed before zipping, the perimeter

can be remeshed to improve quality• Bounding shape operation

• Improves automation and enables designexploration

• Automatically bound a selection of parts with ablock or sphere that updates as designs change

• Select one or more parts to bound then augmentthe size of the box or sphere based on• Dimensional scaling• Offset dimensions

• You can also control the offset of the centroid of thebounding shape with respect to the parts geometriccentroid

• Can be used as an input for• Volume control for mesh refinement• Local volume extent for local wrapping or

remeshing• Overset meshing region creation• Fluid domain creation

• Weak contact creating operation• Improves ability to incorporate design changes and automation of large model setup• Automatically create weak contacts between part surfaces in a pipelined way

• Historically this was a manual process that required scripting to be efficient for large models• Weak contacts are created between the input part’s part surfaces based on a user specified tolerance


October 2017 9

• Improved inherited part selection in custom controls• You can now select any and all proxy

representations of an inherited part that exists inmultiple operations• Previously, when you selected an inherited part

that was nested within multiple mesh operationparts, a proxy representing the inherited partwas created in the outermost mesh operationpart.

• However, as only one proxy could be created foran inherited part within a mesh operation part,there was no way to distinguish betweenselection of the same inherited part that couldexist within multiple mesh operation parts in thesame hierarchy

• Opposing outward now the default for meshoperation imprinting• Users frequently encounter issues imprinting that

can be avoided by simply setting the face orientation to opposing outward• Switching the default behavior saves time and improves robustness

• Robust handling of empty parts in operations• Previously, most of the mesh operations would fail and show an error message when they encountered an

empty input part• Now, all mesh operations skip over empty parts and only show an appropriate warning if empty parts are

found

MeshSurface Repair• Additional query tools

• Calculate volume of a closed selection• If more than one closed volume exists in the selection then the sum of the selection is calculated

• Find parts or faces adjacent to a selection• Select faces on a single part, define a search tolerance, and receive a list of parts that fall within the

tolerance• The search can also return a selection of parts or faces within the tolerance

• Highlight depth selection• Improves understanding of, and interaction with, selection sets• Quick toggle to ensure a selection is correct• Depth Control acts on a selected set of:

• Faces• Edges• Vertices

• Note: if toggled on a selection completely behind other objects then the selection is not visible• Global free edges D892

• You can add a new diagnostic to the repair diagnostics that returns ‘real’ or global free edges


October 2017 10

• When using the description-generating zip operation you must find locations where the zip wasunsuccessful.

• Historically there was no diagnostic to differentiate between part-part edges and global free edges

Surface Mesh• Improved aligned surface meshes on discrete geometry

• Discrete aligned meshing can now create a six-valent mesh on a curved surface

Volume Mesh• Specialized meshing

• Directed mesh many to one now compatible with stacks of parts• Many to one was released in v12.04 to enable more topology types to be meshed with directed mesh

but it could only work on single parts• You can now create meshes with many disconnected source surfaces in different parts that connect to

a single target surface on a single part• Directed mesh many to one now compatible with prism layers when generating an automatic source mesh

• The prism layer mesher has been enhanced to handle disconnected source surfaces• Prism layer meshing

• The prism layer mesher has been enhanced to improve the smoothness of the sub-surface in largeretracted regions

• Advancing layer performance improvement• Total mesh generation time has been improved by ~1.3X and the ALM algorithm has been improved by 2X

• Performance improvements have enabled advancing layer meshes to be generated within 15% of thetime compared to traditional prism layer mesh when using polyhedral meshes

• Improved optimizer when building parallel meshes• The optimizer now behaves more consistently for parallel cases, which improves mesh consistency on

variant core counts• Performance is also improved for both parallel poly and trim

CAE Integration• Uncoupled mesh entities treatment

• Provides more reliable results in co-simulations, wherethere are unmapped faces due to poorly matchedgeometry• Limits the creation of unrealistic hot and cold spots• Energy is conserved; no heat is artificially added or

removed• Creates a new boundary for faces where the mapping

has failed• Conditions for new boundary can be set independently, i.e. adiabatic

• CGNS export to LMS Virtual.Lab• Allows you to transfer STAR-CCM+ data into LMS Virtual.Lab with no external file converter

• Faster and more reliable• Hard coded parameters encapsulated


October 2017 11

• Aimed at exporting transient pressure data on boundaries in order to calculate acoustic solution in LMSVirtual.Lab

• Note: It is possible to export polyhedral data and data per iteration to CGNS but LMS Virtual.Lab is notable to read these files

PhysicsCFDMultiphase FlowComputational RheologyComputational Solid MechanicsElectromagnetics and ElectrochemistryHarmonic BalanceAeroacousticsMotion and Overset

CFD

Flow

• Mass flow outlet for coupled solver and compressible flows D1406• Expands applicability of the coupled solver• Predict characteristic speed lines all the way to surge

• Typically hard to converge operating points towards surge with pressure outlet due to very smallpressure difference from one operating point to the next

• Allows for available physical data to be more readily applied


October 2017 12

• For many applications only upstream data is available• For use with CCA Enhanced Stability Treatment option• Applications include turbomachinery

• Support for polynomial data in the material database D2123• Supports storage and retrieval of polynomial data in material databases:

• Accurate definition for more accurate results• Improves result consistency by reusing material properties from one simulation to another

• Quantities that can be defined in polynomial form for gas, liquid and solid:• Thermal conductivity• Latent heat of vaporization• Dynamic viscosity• Electrical conductivity

• Polynomial data is not supplied in default material databases installed with STAR-CCM+• Applications include plasma, refrigerants, compressors and turbines

• Report of variable corrections D2062• New reports available to monitor variable corrections as the solver runs

• Report L-2 norm of variable change per iteration normalized by mean value of variable in domain• Provide an alternative to residual monitors independent of arbitrary normalization factors

- As such it is more appropriate for use as stopping criteria for inner iterations in transient simulations• Available for variable corrections of:

• Pressure• Velocity• Temperature

• Relative asymptotic stopping criteria D2836• Eliminates the need for a-priori knowledge of monitored quantities' asymptotic value• New option allows you to specify the maximum difference between samples |Max-Min| in absolute or

relative values• Can be used for both inner and outer iterations of a transient run, the iterations of a steady run, and for

other monitored quantities• Applications include adjoint analysis, Harmonic Balance, steady and unsteady simulations

• Tortuosity in Porous Media D4130• Includes the effect of tortuosity in porous media via an effective diffusivity, by scaling the bulk diffusivity• Tortuosity is the ratio of the length of an actual path between two points to the straight-line distance

between those points• Used in cases where porous media is being used to describe unresolved structure, containing

pathways that are not straight and therefore causes fluid to 'diffuse'


October 2017 13

• Applications include batteries, fuel cells, heat exchangers, filters and porous rock

• Refutas model for computing liquid mixture viscosity D2213• Improved accuracy for viscosity of liquid mixtures

• Provides realistic viscosity for range of mixtures• More accurate than mass weighted averaging

• Refutas model for dynamic viscosity• Can be used for two or more components• Requires density to be volume-weighted mixture

- Supplies density under each component• Applications include oil mixtures

• Polynomial fit interpolation for Soret effect thermal diffusion coefficients• Improves speed of calculation of the thermal diffusion coefficients for the Soret effect

• Benefits performance when a large number of species is used• Up to 7x speed up

• Uses approach from binary diffusion coefficients• Calculated for a small number of thermal diffusion coefficients; polynomial interpolation is used to

model the dependence• Typical applications are cases where a large number of chemical species are present under a very large

temperature gradient—like chemical reactions and CVD• Display of number of components under mixture component manager

• Improves ease of use for multi-component material model• PISO corrector report

• Provides insight into solution stability• User can understand when the solution is struggling if the PISO correctors number increase

• With PISO, number of iterations corresponds to number of time-steps• Use for cases with small timesteps (less than dt = 1e-6 s) where PISO can significantly reduce runtime but

may cause stability issues necessitating monitoring of solution stability• Minimum PISO corrector number

• Useful to improve convergence in cases where:• PISO is hitting 20 correctors (default maximum) and eventually diverges• Before the solution hits 20 correctors, it exhibits abnormal velocities or pressure in localized regions

• Previously hardcoded minimum PISO correctors to 2


October 2017 14

• Applications include IC Engine, cold flow runs with no combustion or spray

Energy

• Deactivation of Surface to Surface (S2S) radiation per continuum D1249• Reduces turnaround time for S2S radiation

• If only one physics continuum has the radiation model, radiation is solved only when this continuum isactive. Previously, radiation was solved whenever any physics continuum had radiation selected, evenwhen it was inactive.

• If radiation is selected in any one active continua then radiation must be solved for all continua thathave the radiation model (even if they are inactive). Radiation is not solved for active continua for whichradiation is not selected.

• Applications include conjugate heat transfer for rotating machinery or underhood fans (also with HarmonicBalance)

Reacting Flows

• Dynamic Mechanism Reduction• Up to an order of magnitude faster Complex Chemistry simulations

• Dynamic removal of unnecessary reactions and species• Most effective for large chemical schemes (> 50 species)

• Using directed relation graphs with depth-first search from target species• Species are removed based on user defined error tolerance

• Spark Ignition model• Easy-to-use subgrid spark plug model


October 2017 15

• Calculates spark and flame kernel expansion on subgrid scale, hands over to combustion model ongrid scale

• No need to refine grid to resolve spark• Spark temperature and spark kernel size calculated from typical spark plug conditions• Spherical flame kernel expansion calculated through turbulent flame propagation model

• Final flame kernel sphere ensured to be resolved on actual grid• Source term to combustion model applied homogeneously in final flame kernel sphere

• Spark source term aborted when final flame kernel radius is reached and maximum duration time passed• Improved Soot Method of Moments model

• Easier-to-use and more accurate soot model for Steady Laminar Flamelet and Complex Chemistry• Support for pyrene as precursor in Complex Chemistry allows for more chemical mechanisms to be

used• Two-way coupling between soot moments and species in Complex Chemistry provides higher accuracy

- Very important for precursor starvation when using pyrene-based chemical mechanisms• Nucleation and surface chemistry models updated to most commonly applied and validated models in

literature• Introducing Steric Factor (active site fraction on soot surface) as calibration parameter

• Well established in literature

• Default values for molecular diffusivity, Schmidt number, and number of moments updated for higheraccuracy.

• Note: results will change—some re-calibration is required• Affects all Method of Moments based soot calculations using Steady Laminar Flamelet or Complex

Chemistry combustion models• Chemical reaction rate expressions through user coding for CVODE solver D3478

• Use non-standard reaction rate expressions more easily• CVODE solver now supports user coding for reaction rate expressions in Complex Chemistry

• For fluid and surface chemistry• Two variants

- Calculate Species Source – No internal calculation- Modify Internal Species Source – With internal calculation

• Analytical Jacobian for advanced users


October 2017 16

• Eddy Break-Up mechanism import• CHEMKIN mechanism import supported for Eddy Break-Up kinetics only

• Simplified simulation tree for reactions• Reversible reactions now appear as single reaction• Easily change calculation method for reverse coefficients (equilibrium / user defined Arrhenius coefficients)

• Default value changes• The Ideal gas property incompressible is now deactivated by default for unsteady calculations with

Flamelet Combustion since unsteady calculations converge better when run compressible• Note: For initialization of unsteady calculations through steady calculations, the following workflow is

recommended:• Converge steady incompressible• Switch to steady compressible and re-converge• Switch to unsteady

Turbulence

• Field functions for Taylor and Kolmogorov scales D1952• Allows evaluation of mesh quality for LES/DES from precursor RANS• Saves time when designing meshes for scale-resolving simulations• Reduce number of mesh iterations

1. Run RANS on coarse mesh

2. Evaluate Taylor and Kolmogorov scales

3. Compare to mesh resolution

4. Refine where necessary

Multiphase Flow

Eulerian Multiphase (EMP)

• Emulsion and suspension models - improved treatment of third phases D3574• Improves accuracy for third phases

• Volume fraction of non-participatory phases accounted for in emulsion or suspension model- Previously, the models assumed no contribution from other phases

• Typical applications include oil & gas pipelines


October 2017 17

• Suspension model - additional particle phases• Simulate new applications with the EMP suspension model• Allows new configurations of suspension phases

• Support for multiple dispersed particle phases- Previously only one particle phase allowed

• Changes to suspension model workflow- Suspension rheology added as high level model

* All particle phases included in suspension* Suspension material property laws now under mixture rather than phase interaction* Standard drag laws now modified via correction

* Replaces suspension specific drag law• Applications include foods, medicines and cosmetics

• EMP axisymmetric swirl - support for RSM turbulence model• Reduced computational expense

• For axisymmetric cases with swirl and associated anisotropy- Swirling flows are highly anisotropic, benefitting from addition of RSM compatibility

• Allows you to avoid using a 3D geometry• Typical applications include cyclone separators, pipes, valves, and nozzles

• Improved convergence for porous media with EMP• Improved stability for low resistance porous media

• In previous releases, instabilities developed as resistance tended to zero• New treatment blends high and low resistance formulations

• Provides stable behavior for all levels of resistance• Typical applications include separators and fuel cells

• User wall heat flux coefficient• Additional option for specification of user wall heat flux coefficient for user controlled heat flux relationship

at walls and interfaces• Provides consistency between EMP and single phase flows

• Previously different definitions used• Three options now available:

• None• Specified (consistent with single phase)

- User wall heat flux applied in addition to internal heat flux


October 2017 18

- Used to represent unresolved sources of heat• Specified Net (EMP only, and previous treatment)

- Specified as net value (including internal contribution)- Used to implement user heat transfer model

• Typical applications include condensers, evaporators, and heat exchangers

Volume of Fluid (VOF)

• Evaporation and condensation between VOF phases and Fluid FilmD3581• Model phase change efficiently with a hybrid approach

• Evaporation and condensation can be modeled between VOFphases and Fluid Film phases- Allows species in VOF phases to condense into film species on

walls- Similarly, evaporation processes can be modeled

• Also compatible with hybrid (resolved) VOF-film• Multi-component vapor represented by a VOF vapor phase• Thin liquid films represented by fluid film multi-component liquid

phases• Thick films/pools of liquid represented by VOF liquid phase

• Typical use cases include air conditioning and refrigeration, coolingtowers and heat pipes

Lagrangian Multiphase (LMP)

• Variable criteria for Droplet Film Transition model• Allows setting of spatially variable and

local temperature dependent transitioncriteria• Equivalent Film Thickness parameter

and Coverage Ratio parameters canbe specified using field functions,tables, user code

• Allows full control over where andwhen film is formed

• Applications include Selective CatalyticReduction and vehicle watermanagement

• Field function 'Incident Mass Flux' forcomponents of Lagrangian phase D4138• When multi-component LMP droplets hit the wall

• Incident mass flux of each component field function is available• In addition to total incident mass flux

• Use cases include Selective Catalytic Reduction and general spray painting and coating• Higher order Lagrangian particle trajectory integration D2817

• New second order integration scheme for particle motion• Uses Velocity Verlet algorithm• Available for both LMP and DEM

- Option for Implicit Unsteady, Steady, and PISO Unsteady solvers


October 2017 19

• Can reduce computational expense- For a given accuracy higher particle CFL number for LMP or Time Scale factor for DEM can be

used• Use cases include cyclones and all applications with particles in swirling flows

Discrete Element Method (DEM)

• Capsule DEM primitive particles D3485• Provides improved accuracy in

capturing the effect of particle shape onbulk material properties

• Reduces computational time• Up to 1.1x speed-up compared to

equivalent cylinders• Over 2x speed-up compared to

equivalent composite particles with 5spheres per particle

• Capsule shape is made up of twohemispheres connected by a cylinder• No sharp edges present on the

surface of capsule• Native particle type avoids the need to use composite particles

• Use cases include pharmaceutical tablet coating, biomass fuel production, fluidized bed gasifiers

Computational Rheology

• Film Casting model D3986• Allows efficient modeling of film production

applications• Film casting used to manufacture polymeric film

- Viscoelastic material drawn out into film overcold roller from die

• Film casting model uses a 2D thin film approach• Predicts film thickness and reduction in width

due to necking- Mesh is deformed according to the reduction

of film width using an ALE approach• Iso-thermal and non-isothermal conditions can

be modeled• Temperature shift models for non-isothermal

viscoelastic flow• Model temperature dependence of viscoelastic

flows• 'Newtonian' option added for dynamic viscosity

• For materials where viscosity is independent ofshear rate

• Also used for viscoelastic flows with temperature dependency• Non-isothermal viscoelastic flows have viscosity temperature dependency

• Modeled via temperature shift- Available for new 'Newtonian' dynamic viscosity model


October 2017 20

- Previously only available for Generalized non-Newtonian models- Nahme's law provided in addition to existing Arrhenius, Williams-Landel-Ferry (WLF), constant and

field function methods• Typical applications include film casting

• Shape function default change• Parametric shape functions now default

• Replaces Barycentric• Improved accuracy and convergence

• Improved mass conservation• Higher order shape functions

• Required for axisymmetric cases

Computational Solid Mechanics

• Periodic interface - Cyclic Symmetry D4197• Helps reduce computational expense allowing the modeling of a sector of a cyclically symmetric model

• Model must be symmetric in geometry, boundary conditions, and loads• No higher harmonics considered, only the 0 harmonic

• Anisotropic material model• Expands applicability to greater range of material

types• All 21 material coefficients can be defined by the

user• Extends the orthotropic material model

• Visualization of local material directions• Three new vector field functions (Material Basis

Vector 1, 2 and 3) make it possible to visualize thelocal material directions

• This is only relevant for non-isotropic materialmodels (orthotropic and anisotropic)

• EMAG compatibility with Solid Stress• Allows EMAG to Solid Stress 1-way coupling:

• EMAG runs first• Lorentz forces are sent to solid stress model as source loads• Solid stress model computes resulting displacements and stresses


October 2017 21

• Rigid body rotation correction• Improves accuracy for cases where the fluid mesh resolution is very

different from the one of the structure, and the structure undergoeslarge rigid body motion

• Fluid-Structure coupling in STAR-CCM+ assumes no slip between avertex in the wall boundary of the fluid domain and thecorresponding surface of the structure domain

• Therefore, the connectivity for the mapping between fluid andstructure can be computed once, and reused in subsequent mappingevents

• In a non-conformal mesh, any vertex in the fluid wall boundary hasan offset to the surface of the structure

• The constant connectivity assumption remains valid throughoutseveral mapping and morphing steps only if this offset is treated as arigid link

• The rigid link treatment can be activated via the Rotation Correctiontoggle of the Rigid Body Rotation Correction node in the FluidStructure Coupling solver

• Vertex normal calculation considers symmetry boundary condition• Improves accuracy (consistency) of the vertex normals computation• For vertices that lie on symmetry plane boundaries, the calculation of vertex normals is consistent with the

full geometry resulting from the symmetry condition• Consistent extrapolation of boundary face values and cell values

• Improves the accuracy of the result visualization• Boundary face values and cell values are now computed in the following way:

• Cell-wise extrapolation from integration point values to vertex values• Interpolation of these values back to either the cell center or the boundary face center

Electromagnetics and Electrochemistry

Electromagnetics

• Anisotropic Nonlinear Permeability• Allows for accurate modeling of electric machines with laminated components

• Improves accuracy of magnetic flux density and iron loss prediction• Devices like transformers use laminated steel components

- This design produces an anisotropic permeability• Anisotropic option for Magnetic Permeability material property

• Specify as table (B,H) principal tensor• Limitations:

• Available for 3D FE only• Requires Full Newton scheme

• Initialization of circuit elements• Improved ease of use for the set-up of circuits

• Easily initialize circuit elements from the simulation tree• Reduced time to solution

• Previous workaround involved precursor run to yield desired state• Initial condition node supplied for Inductor, Capacitor and Multi-Contact Circuit elements

• Required for elements with differential state equations


October 2017 22

• Applications include voltage control and plasma simulations• Harmonic Balance FV Electrodynamic Potential

• Improved accuracy over pre-existing models• More physical modeling of induction heating

problems• Available to use with Harmonic Balance FV

Magnetic Vector Potential model• Calculates rotational part of Maxwell equations

• New model additionally calculates non-rotationalcomponent• Accounts for surface charge accumulation at

sharp isolator/conductor interfaces• Prevents electric current leaving conducting

surface unphysically• Limitations:

• Only applies to non-ferromagnetic materials• Applications include induction heating

• Lorentz Force and Ohmic Heating for HarmonicBalance models• Efficiently model induction and Magnetohydrodynamics (MHD) applications• Lorentz Force and Ohmic Heating now compatible with Harmonic Balance models

• HB models solve for electromagnetic field for induction applications in frequency domain• Eddy currents lead to Ohmic heating and Lorentz forces acting on flow or solid

- Accounted as cycle-averaged quantity

• Electrodynamic potential in Phasic Porous Media• Enables simulation of superimposed electric potentials

• Calculate electric potential in selected porous phases + fluid continuum• Limitations

- No coupling between electric potentials in different phases- Contact interface conditions supported for fluid phase only

• Two-way coupled Magnetohydrodynamics (MHD)• Model new applications where solenoidal currents are present• Two-way coupled MHD model compatible with Magnetic Vector Potential models

• Transverse Magnetic Potential model in axisymmetric space• Finite Element Magnetic Vector Potential


October 2017 23

• Finite Volume Magnetic Vector Potential• Harmonic Balance Finite Volume Magnetic Vector Potential

• Previously only compatible with the Electrodynamic Potential model• Applications include electromagnetic stirring

Electrochemistry

• Interface absorption and desorption for species between fluid and solid• Simulate adsorption and desorption of species on membrane interfaces• New electrochemical reaction type: Sorption

• Taking a multi-component fluid species as reactant and an electrochemical species in Solid Ion modelas product

• Reaction formulations:- Springer and Wu-Li-Berg for water transport in PEM fuel cells- Henry’s law for general applications

• Limitation: Only for single phase fluid continua. Activity is thus limited to 1 for fluid species• Electrochemical species transport in solids

• Calculate electrochemical species concentration in solid material• Full transport equation, including diffusion and migration, solved for electrochemical species in Solid Ion

model• Dilute assumption – no effect on solid material properties

• Note: results may change for cases using Solid Ion model in solids• More accurate as full transport equation solved• Freezing the electrochemical species solver and applying unity concentrations gives consistent results

with v12.04

Harmonic Balance

• Robustness improvement for non-reflecting mixing plane boundaries• More physical treatment of reversed flows at the non-reflecting mixing plane interface• Appropriate treatment of the mixing plane boundary conditions enhances robustness

• Applies non-reflecting inflow or outflow boundary conditions locally according to flow direction on themixing plane interface on a per bin basis


October 2017 24

• Applications: steady turbomachinery simulations with non-reflecting mixing plane

Aeroacoustics

• Acoustic Wave Model: Partially absorbing walls D3977• Increases physical realism

• HVAC, mufflers• Acoustic wave propagation in

confined geometries• Hard walls leads to unrealistic wave

propagation with many structuresbeing slightly flexible which acts as adamping mechanism

• Partially absorbing walls can model theeffect of non-rigid structures / thin layerof porous material

• Limitations:• Only available for the Acoustic Wave Model• No support for frequency-dependent absorption

Motion and Overset

• Superposing translating motion• Users can now define nested superposing translating motions

• This extends a similar enhancement in 12.04 enabling nested rotations• Enables simulation of marine dagger boards and similar applications

• Optimization of dirty interfaces set by motion• Historically when two adjacent regions had the same motion and a non-conformal interface, the interface

would be recomputed at every time step• Not required when the regions use the same motion

• When updating interfaces, STAR-CCM+ now skips those interfaces that join regions with the same motiondefinition

• This optimization applies to• Direct Interfaces


October 2017 25

• Indirect Interfaces• Overset Interfaces (for single interfaces only)

• Does not apply to morphing or user defined vertex motion• Improved visualization of overset Interfaces with zero gap

• There has been a small improvement to enhance the visualization that reduces the 'gaps' in section cutsplotting scalars

Design ExplorationAdjoint• Surface sensitivity on interfaces and symmetry planes

• Calculation of sensitivity on interfaces/symmetries• Thermal optimization and CHT applications

• Support for interfaces• User can set interface to be active or passive• Sensitivity identical on both sides after smoothing

• Support for symmetry planes• Values on adjacent boundaries now respect the symmetry plane

• Target application is CHT problems, where the objective is defined at the fluid/solid interface and thesensitivity at that interface is desired

Design Manager• Copy & paste for snapshots

• Quickly create and duplicate snapshots using existing ones• Faster and easier creation of snapshots• Improved consistency

• Leverage existing snapshot properties through• Copy & paste• Drag & drop

• Works for• Scenes• Plots


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• Useful for• Workflow consistency for standardized data analysis• Copying all properties settings

• Copy & paste between design studies• Quickly create and duplicate design study properties from existing ones

• Faster and easier creation of new studies• Reduced likelihood of errors

• Leverage existing design study properties through:• Copy & paste• Drag & drop

• Works for properties of• Input Parameters• Responses• Scenes• Plots• Settings• Design Sets

• Useful to• Quickly switch to a new design study type• Broaden a design study by adding

- Input parameters- Scenes and plots

• Show design details update• Easily find design study files

• Spend less time looking for output files- Open the directory through a direct link


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• Quickly review the design run by• Opening log files directly• Loading sim files automatically

• Useful to• Enable in-depth analysis of specific designs• Help document the Design Study

• Known issue: If you change the name of a directory, the link in the design details panel can no longer beresolved

• Simplified workflow to HEEDS|post• Easily analyze studies using HEEDS|post

• Enable advanced post-processing capabilities• Single-click option saves time through automation

• Run HEEDS|post by automatically• Exporting the design study results• Launching the HEEDS|post application

- Version compatibility ensured


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• Definition of min and max bounds• Improved exploration robustness and accuracy

• Improves exploration results and turnaround time• Setting-up min and max bounds

• For responses to ensure only successful designs used by SHERPA• For objectives or constraints to better drive the optimization search

• Useful to• Avoid misinterpretation of results during exploration• Better identify error designs and classify results• Better use the time allocated for the study

Data AnalysisAnalysis• Solution history (simh) with monitors D863

• Allows you to populate monitor data from simh files• Substantially reduces time & resources needed for data analysis

• Generate time history plots in a fraction of the time needed to re-run the simulation• Works with report monitors, tables & plots• Create dataset functions using simh-based monitor data sources as input

• Setup of report monitors is simplified• On Solution view creation, you can choose to automatically configure monitor filling• Report monitors are populated by animating solution view content


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• Create dataset functions using simh-based monitor data sources as input for frequency domain analysis

• Collocated field functions for minimum/maximum reports• Allows you to find the physical location of maxima/minima of field functions• Specify any number of collocated field functions (scalars or vectors) as a report property

• Find where the maximum temperature is for underhood cases• Return the mixing intensity for min/max concentrations• Return combustion species concentrations for min/max mixing fraction

• Create a monitor report to track:• A collocated value from the list specified in the report properties, and• Additionally specify a subset of the parts specified in the report

• Automate reporting with JAVA using:• value = minMaxReport.getCollocatedValue(fieldFunction, [part] )

• Field Function syntax for reports is now simplified• Report syntax is backward compatible• As an example, consider the report name, "Maximum 1"

- In previous releases, report is referenced as "MaximumReport"- Going forward, report is referenced as "Maximum 1"

Visualization• Aspect ratio & preset resolutions for scene hardcopy & animation D815, D2317

• Improve communication with consistently sized hardcopy output• Fewer clicks and no manual effort needed to set output size• Standardize scene/plot output dimensions for consistent reporting• Use preset resolutions compatible with common video formats

• Select aspect ratio from a list of common standards


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• 16:9, 16:10, 4:3 or 1:1• Pick from image dimensions commonly used, for example, for 16:9 you can select from

• 1280 x 720 for HD• 1920 x 1080 for Full HD• 3940 x 2160 for 4K UHD

• Choose either portrait or landscape orientation• Image dimension preview saves time with hardcopy output borders

• Show possible cropping before scene hardcopy or animation is created

• Better rendering for spheres, cylinders and capsules• DEM images created faster, using less memory, with higher quality

• Generate effective visualization content without slowing down your solver- Use this for spheres, cylinders and capsules

• For 100,000 and 300,000 capsule particle cases- Speed-up factors range from 3X to 26X- Memory reduction of 23X observed- Performance savings depend on scene content

• Works for advanced (CPU) and OpenGL (GPU) rendering• Feature is enabled by setting “Use Implicit Representation” via Tools > Options >Environment• Setting is ON by default for best performance

- When turned OFF, geometry is triangulated- NOTE: Rendering large numbers of particles on the order of 100,000 or higher is prohibitively slow

for Mesa• Ray tracing rendering improvements for fresnel materials (water, glass)

• Create more realistic images with better quality and improved interaction• Refraction and reflection occur naturally to distort objects when viewed underwater or placed behind

glass


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• Caution: The use of fresnel materials in visualization can distort data• Examples below show refracted results at left vs not refracted at right

• New environment maps• Create realistic virtual environments with environment maps


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• Use real world 3D images to surround your scene content• 10 new Spherical maps added to existing Cube environment maps

• Ray tracing adjustments• Changes resolve an inconsistency with render material settings

• In v12.04, restrictions on render material property values were removed• Intent was to provide more flexibility in applying ray tracing effects

- Change was not propagated to the rendering code; images will look different in v12.06

• Going forward, numerical settings are consistently applied to rendering code• To recover previous render behavior, adjust the sum of absorption, reflection and refraction to be equal

to 1.0


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• Render benchmark performance reporting • Ray tracing uses CPU and not GPU for

rendering, accordingly, graphicsReport does not communicateresource requirements when advancedrendering is turned on

• Better benchmarking information nowprovided• To obtain a rendering performance

report- Select “Benchmark” from the

right-mouse pulldown- On the background for any

scene, or- From the scene node on the

node tree• Diagnostic information can be used to

investigate performance issues• For example, the number of rendering threads may be unknowingly set to 1; increasing this setting will

reduce render time

Application Specific ToolsSTAR-ICEElectronics Cooling

STAR-ICE

• Introducing STAR-ICE• New add-on specifically intended for creating in-cylinder simulations of Internal Combustion Engines for

STAR-CCM+• Designed for engine engineers using application-specific language and data inputs/outputs• Go from CAD to running simulation in minutes!• In this release, set up "Cold Flow" simulations (airflow only, with full piston/valve motion)


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• In future releases we will add capabilities for "Charge Motion" (fuel injection/mixing) and "Combustionand Emission" simulations

• In this release, simulate full/half cylinder with symmetry including 2-5 overhead poppet valves• In future releases we will add sector modeling and piston-ported valve capabilities

• Integrated environment• Directly integrated into STAR-CCM+, STAR-ICE can leverage the advanced capabilities of the platform

including automation using JAVA scripting, design studies using Design Manager, and CAD operationsusing 3D-CAD

• Create in-cylinder simulations as part of a larger, more complex multi-physics simulation of the engine• Automatic post-processing

• Sets up commonly used plots and scenes automatically such as...• Cylinder pressure plot• Cylinder temperature plot• Swirl plot• Tumble plot• Mid-cylinder cross-section scene• Mid-valve cross-section scene

• You can customize automatically-created plots/scenes• You can create your own custom plots/scenes

• Automatic mesh motion• Uses "morph-map" approach to move the piston and valves, distorting the mesh using the STAR-CCM+

morpher• Cell quality is automatically observed throughout the simulation and when the quality exceeds thresholds,

the solution is stopped, automatically mapped onto a new, undistorted mesh, and the simulation continues• The mesh motion process/control is completely automated within the tool—you only specify the initial

mesh and STAR-ICE runs the motion throughout the simulation• Licensing

• Requires additional "Enable STAR-ICE" license package to run• As an alternative, current STAR-CD licensees can make use of their "es-ice" and "Reactive Flow Models"

license packages (combined) to enable use of both STAR-CD and STAR-ICE during transition period

Electronics Cooling

• Deep copy• Relationships between components within an assembly are

copied along with the geometry, so they can be moved togetheras one• Retains associativity between copies of components• Reduces opportunity for error• Saves time

• Extract volume from mixed sources• Allows mixed inputs (i.e. construction object AND quickparts) for

extract volume operations• Speeds up workflow, as there is no requirement to create a

quickpart of the casing• For situations where the thermal influence of the casing is

not required• New material library

• Extra material library has been added specifically for electronics cooling applications


October 2017 35

• Allows components to be modeled more accurately

User Guide• Theory Guide

• Additional and extended sections for this release:• Eulerian Multiphase Flow

- Volume of Fluid Method- Fluid Film

• Mesh Motion- Morphing

• Reacting Flow (part two)- Includes flamelets, NOx, and Soot

• Electrochemistry• New tutorials

• Foundation Tutorials• Usability: Creating a Template Simulation File• Usability: Applying the Template Simulation File

• Multiphase Flow• Fluid Film - VOF: Rivulets on an Inclined Plane

• Electrochemistry• Electrochemistry: Solid Oxide Fuel Cell

• STAR-ICE• Gasoline Engine

• Other changes• The Add-ons section has moved from the outermost level to a new location within STAR-CCM+. This

section includes the new material for STAR-ICE.


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Documents

STAR-CCM+ enhancements in New features and€¦ · • The use of user-defined color maps as default improves consistency across simulations and helps ... remeshing • Overset meshing