STAR-CCM+ Pre/Post Processing Bill Jester, CD-adapco

Introduction – Pre/Post Processing

STAR-CCM+

Meshing/Simulation Inpu

t D

ata

Outp

ut R

esu

lts

Pre-processing

Post-processing

Introduction – Pre-processing

What do you need to do to import

create

modify

prepare your model for simulation?

Introduction – Pre-processing

STAR-CCM+

Meshing/Simulation

CAD/PLM Import

CAD Application

CAD Data

PLM Data

Model definition

Design idea

Embedded STAR-CCM+ solution in CAD products

Simple GUI for meshing, physics

Drives STAR-CCM+ as a live client

Full power of STAR-CCM+ available “under the hood”

CAD Clients

Significant improvement in geometry transfer

– Faster

– More Robust

– Access to CAD geometry during meshing

Usability, quality, robustness

CAD Clients – Recent Focus

Read data directly from neutral and native CAD formats

Growing support for PLM import

Ongoing collaboration between CD-adapco and 3rd party CAD

translators

CAD/PLM Import

Integration of HOOPS Exchange CAD translators

Provides significant new import capabilities

CAD/PLM Import – Recent Focus

full linux support

CGR import

3dxml import Read tessellation

or geometry

improved performance

3dxml Import

Working with 3rd parties to improve translation results

– Recent issues with missing face names and incorrect assembly structures

have been resolved

Internal efforts to improve results after transfer

CAD/PLM Import – Continuous Quality Improvements

Missing patch on

invalid face

Automatic fill to

repair patch

v6.0

4

v7.0

2

A feature-rich solid modeler in the STAR-CCM+ framework

Fully parametric and scriptable

Ideal for creating geometry interactively or automatically from

a design description

3D-CAD Modeler

3D sketch import

Sketch improvements

New solid modeling features

Deployment in vertical applications

3D-CAD – Recent Focus

3D-CAD 3D Sketching

Import profile curves for loft

Sweep curve

Loft guide curve

3D-CAD – New Sketching Features

Offset sketch

Fillet/chamfer sketch

Dynamic dimensions

Edge projection

3D-CAD – New Solid Modeling Features

Improved filleting options

Extrude up to face/body

Sketch imprinting

3D-CAD – Deployment in Vertical Applications

3D-CAD is fully scriptable

parametric

integrated for domain-specific development.

3D-CAD in Electric Motors

Motor specification in

SPEED .xGDF format

Automatic creation of rotor,

stator, magnets, and windings

3D-CAD in Electric Motors

3D-CAD in Battery Simulation

Battery specification

from Battery Design Studio

Automatic creation of

components for battery cells

and packs

3D-CAD in Battery Simulation

3D-CAD in Casting Simulation

Runner Design Assistant Software for

automatic creation and optimization of a

runner system for sand casting.

Pre-processing – Conclusions

STAR-CCM+

Meshing/Simulation

CAD/PLM Import

CAD Application

CAD Data

PLM Data

Model definition

Design idea

No single solution to pre-processing needs

Diverse, growing team with ambitious plans

for the future!

Introduction – Post-processing

What do you need to do to visualize

analyze

interrogate

explore

share your results during/after simulation?

STAR-CCM+

Meshing/Simulation

Data Analysis

External tools

Presentation of results

Quantitative results

Statistics

Design optimization

Visual Interrogation

Hardcopy

Animation

Results Export

Export solution data for use in other applications:

– STAR-View+

– VRML

– 3rd party post-processors

Communicate results with other CAE tools for co-simulation

Embed STAR-CCM+ scene data in documents or websites

Lightweight files with free viewer

STAR-View+

S T A R - V i e w + A c t i v e X C o n t r o l

f i l e n a m e = C : \ U s e r s \ H e u v e l m a n \ D e s k t o p \ L i v e P i c k e 3 \ T u e s \ S e s s i o n 3 \ 0 2 . B i l l \ s t r e a m l i n e s . s c e

Quantitative Analysis

Extract numerical and statistical data from simulations

Tools must be accurate, flexible, and efficient

Reports Monitors Plots Frequency Domain

Development of necessary tools for specific domains:

– Turbomachinery

– Battery simulation

– Electric motors

– Aeroacoustics

Quantitative Analysis – Recent Focus

Quantitative Analysis – Turbomachinery Features

Unrolling of cylindrical

and periodic surfaces Averaging along

coordinate systems

(circumferential or linear)

Quantitative Analysis – Electric Motor Features

Line Integral Reports for flux linkage in motor applications

Visualization

Allow live interrogation and image export of complex

simulation results

Visual Interrogation Hardcopy Animation

Transient Data Feature Extraction

Simulation History for transient post-processing and other applications

Automatic feature extraction

Surface flow visualization

Physics-specific visualization

Visualization – Recent Focus

Simulation History

Select Regions and Fields of interest and update frequency

Begin running simulation. Results recorded in .simh file

Create new “Solution View” linked to simulation history

Switch existing scenes to “Solution View”

Slide through recorded data to explore history

Feature can be used for

Transient post-processing Mesh comparisons Design optimization

Visualization – Feature Extraction

Automatically analyze vector fields to identify critical flow features

Vortex Cores Separation/Attachment

Lines

Experimental flow visualization techniques yield a rich view of flow fields.

Visualization – Surface Flow

Primary vortices

Secondary/tertiary vortices

Traditional CFD tools for vector field visualization either don’t provide

enough information or provide too much clutter.

Bouard and Coutanceau (Journal of Fluid Mechanics, 1980)

Visualization – Surface Flow

Line Integral Convolution provides a detailed view of complex flow on surfaces.

Layer with color and animation for even more information.

Visualization – Surface Flow

Visualization – Physics Specific Tools

DEM Particle Visualization

Overset Grid

Conclusions

STAR-CCM+

Meshing/Simulation

CAD/PLM Import Data Analysis

Innovative pre and post-processing solutions to meet

and exceed customer demands and enable engineering

success!

Continued growth of

development team and focus

on new features:

– Surface modeling

– Tighter CAD integration

– Faster visualization

– Additional reporting

– Advanced visualization

techniques