0 STAR-CCM+_reference guide2012

Import a surface/CAD geometry

• File > Import Surface or Click

Import, Edit or Create a New Geometry using 3D-CAD

• Right click on 3D models > New+ Right Click on a Plane > Create Sketch+ Right Click on a Sketch > Choose 3D Feature Operation

Turn 3D-CAD Model into a Region

• Rename Faces in 3D-CAD for Boundaries+ Close 3D-CAD > Right Click on Model > New Geometry Part+ Right Click on Part > Choose Region > New

Available 3D Operations:

• Sweep, Loft, Extrude, Revolve, Fillet, Chamfer, Pattern, Booleans, Flow Domain Extraction

Design parameters:

• Allows parameters to be modified without having to edit the 3D model

From Geometry Creation & Import…

STAR-CCM+ v7 Workflow Process

STAR-CCM+ v7 Quick Reference Guide 02

v7RefGuide02_2012

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STAR-CCM+ v7 Quick Reference Guide 03

Creating a Mesh Continuum

• Right click on Continue > New+ Select Mesh+ Right click Mesh > Select Models

Meshing Models

Surface Wrapper (Not always required)

• Fluid volume extraction• Complex assembly simplification• Provide closed surface on poor quality CAD

Surface Remesher (Required)

• To improve quality of surface triangulation

Trimmer

•More efficient at filling large volumes• Uses less memory per cell

Polyhedral Mesher

•Well suited to complex, multi-region geometries• Converges quickly

Prism Layer Mesher• Used to generate prisms next to walls

Extruder• Used to offset boundaries• Useful for cell count/meshing time reduction

Thin Mesher• Create prisms in thin objects• Reduces cell count for thin objects

Advancing Layer Mesher• Used to create thicker layers of polyhedral prisms

• Effective for external aerodynamics,hydrodynamics etc

Generalized Cylinder•Meshes cylindrical shapes with prismatic cells• Effective meshing of pipelines, manifolds, etc.

Meshing Rules of thumb

• Minimum of 4-5 cells across a thin channel• For flows where heat transfer or lift/drag is important- At least 15 cells in the prism layer- Y+ values should be less than 3

• Refine where there are high gradients- Recirculation- Jet flows- High temperature gradients

Tip: Always look at the engineeringquantities that need to be derivedfrom the simulation!

Volumetric Controls

• Right click on Volumetric Controls > New+ Choose shape or any part for control+ Provide custom size for polyhedral & surface meshers+ Isotropic and anisotropic refinement of trim meshes+ Custom settings for prism layers

Local Mesh Settings

• Region specific settings- Refine a porous media or thin wall solid

• Boundary specific settings- Small geometry relative to over all size- Special boundary layer needs- Bounding box may need coarser settings

...To Mesh Generation

Creating a Physics Continuum• Right click on Continua > New+ Select Physics+ Right click on new continua > Select Models+ Essential models use round check box, optional use square

Tip: Auto-select option will choose most commonlyused models

Creating Reports and Monitors• Right click Reports > New+ Select desired type of report+ Define included parts and units to return+ Right click on the new report > create monitor and plotfrom report

• To create field monitors+ Right click Monitors+ New Monitor

Tip: Multiple reports can be put in one plot

Monitoring Convergence• Residuals- Should decrease by 2-3 orders of magnitude

• Engineering Values- Area or Mass averaged- Volume Averaged- Maximums or Minimums- Flow Rates- Forces/Moments or coefficients

• Flowfield- Create Scalar or Vector scenes to provide visualconfirmation of simulation setup

�� In case of divergence, check:• Boundary conditions

- location, values, validity• Initial conditions • Correct physics models applied• Mesh quality and density• Solver controls

- under relaxation, courant number

Setting up the Physics...

• Multiphase models:- Volume of Fluid VOF- To model immiscible mixtures with a sharp free surfacebetween phases

- Supplementary models: Boiling, cavitation, surface evaporation & condensation, melting-solidification, wave generation

- Eulerian Multiphase- To model mixtures of discrete phases, such as powders, bubbly flows etc

- Supplementary models: Interphase drag laws for different flowtypes, solid pressure force, S-Gamma population balance, boiling, gas dilution, permeable boundaries

- Lagrangian Multi-phase- To study the behavior of droplets and solid particles e.g. sprays

- Injectors are used to define the entrance of the droplets into the domain

- Supplementary models: Drag force, turbulent dispersion, erosion, wall interaction, droplet atomization and breakup, evaporation, Coulomb forces

- Discrete Element Model (DEM)- Used to study the behavior of discrete particles and how they interact (slide/bounce etc) with each other

- Suplementary models: Drag force, particle cohesion, particle bonding and breaking, turbulent dispersion

- Fluid film- To model transport and energy transfer of thin fluid films

- Suplementary models: Wave & edge based stripping

• Heat Transfer and Conjugate Heat Transfer- Conduction, Convection- Radiation - Surface to surface, solar and discrete ordinates (DOM)

• Combustion and Chemical Reaction- Coal combustion, Eddy Break-up (EBU), Homogeneous reactor,

Coherent Flame Model (CFM), Partially Pre-mixed Coherent FlameModel (PCFM), Presumed Probability Density Function (PPDF),

Progress variable model (PVM), Thickened flame model, Soot moments emission

• Multiphysics- Solid Stress: small and large deformations formulation- Battery simulation: Simulation of coupled electric and thermal

fields in batteries

- Electromagnetic Field Simulation- Fluid Structure Interaction and Dynamic Fluid Body Interaction- Import/map/export CAE models

• Optional models- Passive scalar - to visualise tracers e.g. Smoke dispersal- Co-simulation - Coupling to 1D & 3D CAE tools- Thin Film - Models de-fogging and de-icing - Aeroacoustics: Identification of broadband noise sources and far field propagation- Melting and Solidification- Gravity









Design parameters:


Creating New Scenes

• Right Click Scenes > New Scene • Scenes are made up of different displayers with differentproperties applied to each

• Different scene types contain a default set of displayers,more may be added once the scene has been created

• Change opacity of a displayer to create overlay effect• Scene in Scene feature, creating composite scenes

Solution History • Record replay, and review results from transient or steady state simulations.-- Solutions are stored in a .simh file

• To create a new solution history:-- Right click on Solution Histories > New-- Choose a file name-- If auto recording, make sure "Auto-record is ticked" andselect update rule and frequency (time step, iteration etc)-- Choose scalar and vector functions to record-- Choose regions to use

• To load an existing solution history-- Right click on Solution Histories > Load

• To load instantaneous solution data into a solution history-- Right click on the solution history > create snapshot- To view recorded results-- Right click on solution history > create recorded solution view-- under "Solution views" choose by state name, index, iteration, time setup or solution time-- drag and drop solution view into scene or choose in a representation drop-down

• To animate results choose what data to cycle through and cylcle properties under animation

Displayer types

• Geometry- Used to display geometry- Colour, opacity and shading may be altered

• Scalar- To plot field functions on parts- Can be displayed as filled (with or without mesh), smooth filed and as contours

• Vector- To plot vector quantities - Vector styles/distributions may be altered

• Streamline- Only used to display streamlines- Streamlines may be plotted as tubes, lines or ribbons- May be animated using the toolbar

• Particle Track- To display droplet paths for lagrangian phase

Applying a Representation

• Expand Representations+ Drag the appropriate representation into the active scene

Derived Parts• Right Click Derived Parts >+ Plane Sections+ Iso-surfaces+ Streamlines+ Thresholds+ Particle tracks+ Probes

Exporting a Scene• Right Click on the Scene Name+ Hard Copy for Static Image+ Export STAR-View+ for interactive 3D Scene in free viewer

STAR-CCM+ v7 Quick Reference Guide STAR-CCM+ v7 Quick Reference Guide

Tip: Volume Mesh or Solution View Representation Must Be Acitve


...Through to Post-processing

0503

Overset MeshesTo model extreme ranges of motion between multiple bodies, easily swap parts, change body positions• To use overset meshes:- Outer boundaries of overset region should be "overset mesh" type- Select the background and overset region right click > Create Interface > Overset Mesh

Modeling Motion• In tools right click on motions > New+ User Specified motion- Rotation- Rotation & Translation- Morphing- Harmonic Balance Flutter

+ Dynamic Fluid Body Interaction (DFBI)- Rotation & Translation- Embedded Rotation- Morphing- Superposed rotation

+ Solid Displacement

Modeling

• Space- 2D, Axisymmetric, 3D, Shell 3D

• Time - Steady-state, Unsteady Implicit , Unsteady Explicit, Harmonic Balance

• Material- Gas, Liquid or Solid single components- Gas, Liquid or Solid multi-components- Immiscible phases, VOF & Eulerian Multiphase

• Flow- Coupled Flow and Coupled Energy: for compressible flows,shock waves, natural convection, large body sources, energy sources: for subsonic up to hypersonic flows

- Segregated Flow and Segregated Fluid Energy: for most subsonic flows, Lagrangian multiphase for droplet modeling

• Viscous regime- Inviscid: for high-Reynolds compressible aerodynamics- Laminar- Turbulent (3 approaches: RANS, LES, DES) K-Epsilon: generally well suited to industrial-type

applications

K-Omega: good for low speed external aero (Automotive or Aerospace), captures wake better than K-E model

Gamma ReTheta: Transition model from laminar to turbulent regimes

Spalart-Allmaras: Predominantly used in Aerospace, goodfor attached flow around streamlined bodies

Reynolds Stress Transport: Works best for cyclone separators where flow is highly anisotropic



Meshing Models





Trimmer


Polyhedral Mesher






• Effective for external aerodynamics, hydrodynamics etc





Tip: Always look at the engineering quantities that need to be derived from the simulation!

Volumetric Controls


Local Mesh Settings




Scalar displayer

Menu Bar

Displayers


STAR-CCM+ v7 Quick Reference GuideSTAR-CCM+ v7 Quick Reference Guide 02

Scalar Color Bar

Setting up the Physics...continued

v7RefGuide02_2012

04

Creating a Physics Continuum• Right click on Continua > New + Select Physics+ Right click on new continua > Select Models+ Essential models use round check box, optional use square

Tip: Auto-select option will choose most commonly used models

Creating Reports and Monitors• Right click Reports > New+ Select desired type of report+ Define included parts and units to return+ Right click on the new report > create monitor and plot from report

• To create field monitors+ Right click Monitors + New Monitor





� In case of divergence, check:• Boundary conditions




















fields in batteries











Design parameters:


Creating New Scenes

• Right Click Scenes > New Scene • Scenes are made up of different displayers with differentproperties applied to each

• Different scene types contain a default set of displayers,more may be added once the scene has been created

• Change opacity of a displayer to create overlay effect• Scene in Scene feature, creating composite scenes

Solution History • Record replay, and review results from transient or steady state simulations.-- Solutions are stored in a .simh file

• To create a new solution history:-- Right click on Solution Histories > New-- Choose a file name-- If auto recording, make sure "Auto-record is ticked" andselect update rule and frequency (time step, iteration etc)-- Choose scalar and vector functions to record-- Choose regions to use

• To load an existing solution history-- Right click on Solution Histories > Load

• To load instantaneous solution data into a solution history-- Right click on the solution history > create snapshot- To view recorded results-- Right click on solution history > create recorded solution view-- under "Solution views" choose by state name, index, iteration, time setup or solution time-- drag and drop solution view into scene or choose in a representation drop-down

• To animate results choose what data to cycle through and cylcle properties under animation

Displayer types

• Geometry- Used to display geometry- Colour, opacity and shading may be altered

• Scalar- To plot field functions on parts- Can be displayed as filled (with or without mesh), smooth filed and as contours

• Vector- To plot vector quantities - Vector styles/distributions may be altered

• Streamline- Only used to display streamlines- Streamlines may be plotted as tubes, lines or ribbons- May be animated using the toolbar

• Particle Track- To display droplet paths for lagrangian phase

Applying a Representation

• Expand Representations+ Drag the appropriate representation into the active scene

Derived Parts• Right Click Derived Parts >+ Plane Sections+ Iso-surfaces+ Streamlines+ Thresholds+ Particle tracks+ Probes

Exporting a Scene• Right Click on the Scene Name+ Hard Copy for Static Image+ Export STAR-View+ for interactive 3D Scene in free viewer


Tip: Volume Mesh or Solution View Representation Must Be Acitve


...Through to Post-processing

0503

Overset MeshesTo model extreme ranges of motion between multiple bodies, easily swap parts, change body positions• To use overset meshes:- Outer boundaries of overset region should be "overset mesh" type- Select the background and overset region right click > Create Interface > Overset Mesh

Modeling Motion• In tools right click on motions > New+ User Specified motion- Rotation- Rotation & Translation- Morphing- Harmonic Balance Flutter

+ Dynamic Fluid Body Interaction (DFBI)- Rotation & Translation- Embedded Rotation- Morphing- Superposed rotation

+ Solid Displacement

Modeling

• Space- 2D, Axisymmetric, 3D, Shell 3D

• Time - Steady-state, Unsteady Implicit , Unsteady Explicit, Harmonic Balance

• Material- Gas, Liquid or Solid single components- Gas, Liquid or Solid multi-components- Immiscible phases, VOF & Eulerian Multiphase

• Flow- Coupled Flow and Coupled Energy: for compressible flows,shock waves, natural convection, large body sources, energy sources: for subsonic up to hypersonic flows

- Segregated Flow and Segregated Fluid Energy: for most subsonic flows, Lagrangian multiphase for droplet modeling

• Viscous regime- Inviscid: for high-Reynolds compressible aerodynamics- Laminar- Turbulent (3 approaches: RANS, LES, DES) K-Epsilon: generally well suited to industrial-type

applications

K-Omega: good for low speed external aero (Automotive or Aerospace), captures wake better than K-E model

Gamma ReTheta: Transition model from laminar to turbulent regimes

Spalart-Allmaras: Predominantly used in Aerospace, goodfor attached flow around streamlined bodies

Reynolds Stress Transport: Works best for cyclone separators where flow is highly anisotropic



Meshing Models





Trimmer


Polyhedral Mesher






• Effective for external aerodynamics, hydrodynamics etc





Tip: Always look at the engineering quantities that need to be derived from the simulation!

Volumetric Controls


Local Mesh Settings




Scalar displayer

Menu Bar

Displayers


STAR-CCM+ v7 Quick Reference GuideSTAR-CCM+ v7 Quick Reference Guide 02

Scalar Color Bar

Setting up the Physics...continued

v7RefGuide02_2012

04

Creating a Physics Continuum• Right click on Continua > New + Select Physics+ Right click on new continua > Select Models+ Essential models use round check box, optional use square

Tip: Auto-select option will choose most commonly used models

Creating Reports and Monitors• Right click Reports > New+ Select desired type of report+ Define included parts and units to return+ Right click on the new report > create monitor and plot from report

• To create field monitors+ Right click Monitors + New Monitor





� In case of divergence, check:• Boundary conditions




















fields in batteries



Graphics Window

Output WindowProperties Window

Explorer Plane

Menu Bar Toolbar

Action

<LMB>

Rotates the view.• Moving the mouse horizontally will rotate the

view around the vertical axis• Moving the mouse vertically will rotate the view

around the horizontal axis• Moving the mouse at some angle, combines

the two rotations

<MMB>Zooms the view in or out.• Moving the mouse up, makes the view larger• Moving the mouse down, makes the view smaller

<RMB> Pans the model across the screen

CTRL+<LMB>

Rotates the view around the axis perpendicular tothe screen.• Moving the mouse down rotates clockwise• Moving it up rotates the view counter-clockwise

Action Hotkey

Probe .

Reset R

Top View T

Side View S

Front View F

Fit the View H

STAR-CCM+ v7 Hotkeys Using ToolsIn the Scene window Using the Mouse in the Visualization Display

LMB = left mouse button.MMB = middle mouse button.RMB = right mouse button.

TheSTAR-CCM+Workspace

Mesh Generation

3D-CAD

Plots

Zone Select

System

LoadSimulation

NewSimulation ImportMesh

Save Save All Cut Copy Paste

Edit

StartRecording PauseRecording

Play Macro StopRecording

Macro

Clear Mesh CreateSurfaceMesh

ImportSurface InitializeMesh Initialize Solution Run Fit Plan

Create/Open Plots ZoomStep Stop

Solution

CreateTransformSketchPlane

CreateExtrude

CreateSketch

CreateRevolve CreateSweep

CreateChamfer

CreateRevolveCut

CreateExtrudeCut

CreateLoft

Create Fillet SelectionFilter

RubberbandSelect ZoneSelect

ToolbarsDescription

STAR-CCM+ v7 Quick Reference Guide

Tools can help add additional complexity and features to a simulationAnnotations• Simple text.• 2D, 3D, background, plot and scene images.• Iteration/time step display.• CD-adapco and company logos.• Scene information.• Scene Grid.

Colormaps• Create user defined color maps for use in post processing displayers.

Coordinate Systems• Laboratory system.• Local coordinate system: Cartesian, cylindrical, spherical.• Block-mapped coordinate system: to create section surfaces along periodic directions.

Co-Simulation• Couple STAR-CCM+ to CAE tools.

Data Mappers• Map simulation results to surfaces and volumes for CAE integration.

Data Set Functions• Perform a Fast Fourier Transform (FFT) on data.• Used for frequency analysis in aeroacoustics.

Field Functions• A mechanism by which fields (raw data from the simulation stored in the cells,

and/or on the boundaries) may be viewed and defined in STAR-CCM+.- System Field and User Field Functions.- Scalar Field and Vector field Function.

Layouts• Store the layout of the STAR-CCM+ interface.

Databases• Access to information on a material properties used when selecting physics models.

Motions• Create motions for modeling moving objects such as turbomachines & floating bodies.

Reference frames• Create frames of reference for post processing and rotating/translating objects.

Tables• To specify tabular data for the simulation, particularly for boundary conditions and/or initial

conditions (e.g. fan curves).• To extract and export tabular data from the simulation, including accumulated forces,

i.e. to use as boundary conditions for other simulations.

Transforms• Used by displayers to modify the default position, orientation, or size of the part in the displayer. Transforms can repeat or

mirror parts, or just reposition, resize, or reorient them. The transform feature is for viewing only.

Units• A flexible and customizable support for engineering units allows to view default units and create user defined units.

User code• Allows STAR-CCM+ to be customized with functions written in a compiled language such as C, C++ or Fortran.

Views• The position and angle of the view in a scene may be saved and copied.• Stored views allow for repeatable post-processing.

Volume Shapes• Creates shapes for volumetric controls.

010706

In Surface Repair

Create Volume Mesh


Visualization Animation

Fit Rotate

Create/Open Scenes

View RedoView

MeasureDistance

UndoViewBoxZoom Transparent

CreateSection Step Backward Write Movie

Play/Pause Stop Step Forward

Toggle mesh

Action Hotkey

Browse Problem Areas

First Problem Area Up

Previous Problem Area Left

Next Problem Area Right

Last Problem Area Down

Repair

Delete Face D

Auto repair surface errors A

Delete Face D

Create Face from Vertices V

Collapse Vertices C

Smooth Vertices M

Split Edge S

Swap Edge W

Zip Edges Z

Flag Feature Edge F

Unflag Feature Edge U

Fill Holes H

Fill Polygonal Patch P

Undo CTRL+Z

Redo CTRL+Y

Action Hotkey

Selection Controls

Select None SHIFT+N

Select/Deselect/Subset Select Zone SHIFT+Z

Select/Deselect/Subset Select Geometric Range SHIFT+R

Select/Deselect/Subset Boundaries SHIFT+B

Grow Selection +

Shrink Selection -

Multi-Grow Selection SHIFT+M

Select Attached Edges SHIFT+E

Select Attached Vertices SHIFT+V

Toggle face selection Alt+1

Toggle edge selection Alt+2

Toggle vertex selection Alt+3

Clear face selection SHIFT+1

Clear edge selection SHIFT+2

Clear vertex selection SHIFT+3

Display Controls

Show All CTRL+A

Hide All CTRL+SHIFT+A

Show Selected CTRL+S

Hide Selected CTRL+SHIFT+S

Grow Displayed CTRL + “+”

Shrink Displayed CTRL+”-”

Show Faces on Boundaries CTRL + B

Hide Faces on Boundaries CTRL+SHIFT B

Graphics Window


Explorer Plane

Menu Bar Toolbar

Action

<LMB>




the two rotations



CTRL+<LMB>


Action Hotkey

Probe .

Reset R

Top View T

Side View S

Front View F

Fit the View H




Mesh Generation

3D-CAD

Plots

Zone Select

System

LoadSimulation



Edit



Macro




Solution


CreateExtrude

CreateSketch


CreateChamfer

CreateRevolveCut

CreateExtrudeCut

CreateLoft



ToolbarsDescription























010706

In Surface Repair

Create Volume Mesh



Fit Rotate

Create/Open Scenes

View RedoView

MeasureDistance




Toggle mesh

Action Hotkey






Repair

Delete Face D


Delete Face D


Collapse Vertices C

Smooth Vertices M

Split Edge S

Swap Edge W

Zip Edges Z

Flag Feature Edge F


Fill Holes H


Undo CTRL+Z

Redo CTRL+Y

Action Hotkey

Selection Controls

Select None SHIFT+N




Grow Selection +

Shrink Selection -










Display Controls

Show All CTRL+A








Graphics Window


Explorer Plane

Menu Bar Toolbar

Action

<LMB>




the two rotations



CTRL+<LMB>


Action Hotkey

Probe .

Reset R

Top View T

Side View S

Front View F

Fit the View H




Mesh Generation

3D-CAD

Plots

Zone Select

System

LoadSimulation



Edit



Macro




Solution


CreateExtrude

CreateSketch


CreateChamfer

CreateRevolveCut

CreateExtrudeCut

CreateLoft



ToolbarsDescription























010706

In Surface Repair

Create Volume Mesh



Fit Rotate

Create/Open Scenes

View RedoView

MeasureDistance




Toggle mesh

Action Hotkey






Repair

Delete Face D


Delete Face D


Collapse Vertices C

Smooth Vertices M

Split Edge S

Swap Edge W

Zip Edges Z

Flag Feature Edge F


Fill Holes H


Undo CTRL+Z

Redo CTRL+Y

Action Hotkey

Selection Controls

Select None SHIFT+N




Grow Selection +

Shrink Selection -










Display Controls

Show All CTRL+A








Documents

0 STAR-CCM+_reference guide2012