STAR-CCM+ Pre/Post Processing
Bill Jester, CD-adapco
Introduction – Pre/Post Processing
Output Results
Input Data
Pre-processing
STAR-CCM+
Meshing/Simulation
Post-processing
Introduction – Pre-processing
What do you need to do to
import
create
modify
prepare
your model for simulation?
Introduction – Pre-processing
CAD Application
CAD Data
PLM Data
CAD/PLM Import
STAR-CCM+
Meshing/Simulation
Model definition
Design idea
CAD Clients
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 – Recent Focus
Significant improvement in geometry transfer
– Faster
– More Robust
– Access to CAD geometry during meshing
Usability, quality, robustness
CAD/PLM Import
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 – Recent Focus
Integration of HOOPS Exchange CAD translators
Provides significant new import capabilities
full linux support
CGR import
Read tessellation
or geometry
3dxml import
improved performance
3dxml Import
CAD/PLM Import – Continuous Quality Improvements
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
Missing patch on
invalid face
v7.02
v6.04
Automatic fill to
repair patch
3D-CAD Modeler
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 – Recent Focus
3D sketch import
Sketch improvements
New solid modeling features
Deployment in vertical applications
3D-CAD 3D Sketching
Sweep curve
Import profile curves for loft
Loft guide curve
3D-CAD – New Sketching Features
Dynamic dimensions
Offset sketch
Fillet/chamfer sketch
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
CAD Application
CAD Data
PLM Data
CAD/PLM Import
STAR-CCM+
Meshing/Simulation
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?
External tools
Presentation of results
Data Analysis
Quantitative results
Statistics
Design optimization
STAR-CCM+
Meshing/Simulation
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
STAR-View+
S T A R -V ie w +
fil e n a m e
=
A c tiv e X
C o n tro l
C :\U s e rs \ H e u v e l m a n \ D e s k to p \ L
Embed STAR-CCM+ scene data in documents or websites
Lightweight files with free viewer
Quantitative Analysis
Extract numerical and statistical data from simulations
Reports
Monitors
Plots
Frequency Domain
Tools must be accurate, flexible, and efficient
Quantitative Analysis – Recent Focus
Development of necessary tools for specific domains:
–
–
–
–
Turbomachinery
Battery simulation
Electric motors
Aeroacoustics
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
Feature Extraction
Animation
Transient Data
Visualization – Recent Focus
Simulation History for transient post-processing and other applications
Automatic feature extraction
Surface flow visualization
Physics-specific visualization
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
Visualization – Surface Flow
Experimental flow visualization techniques yield a rich view of flow fields.
Secondary/tertiary vortices
Primary vortices
Bouard and Coutanceau (Journal of Fluid Mechanics, 1980)
Traditional CFD tools for vector field visualization either don’t provide
enough information or provide too much clutter.
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
CAD/PLM Import
Data Analysis
STAR-CCM+
Meshing/Simulation
Continued growth of
development team and focus
on new features:
–
–
–
–
–
Surface modeling
Tighter CAD integration
Faster visualization
Additional reporting
Advanced visualization
techniques
Innovative pre and post-processing solutions to meet
and exceed customer demands and enable engineering
success!