STAR-CCM+ Pre/Post Processing Bill Jester, CD-adapco Introduction - - PowerPoint PPT Presentation

STAR-CCM+ Pre/Post Processing

Bill Jester, CD-adapco

Introduction – Pre/Post Processing

STAR-CCM+ Meshing/Simulation

Input Data Output Results

Pre-processing Post-processing

Introdu

• duction

ction – Pre-pr processing cessing

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

• r 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

v6.04 v7.02

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!

Introdu

• duction

ction – Post st-pr proc

• cessi

essing

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

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

• n new features:

– Surface modeling – Tighter CAD integration – Faster visualization – Additional reporting – Advanced visualization techniques