STAR-CCM+ Pre/Post Processing Bill Jester, CD-adapco
Introduction – Pre/Post Processing Pre-processing Output Results Input Data STAR-CCM+ Meshing/Simulation Post-processing
Introdu oduction ction – Pre-pr processing cessing What do you need to do to import create modify prepare your model for simulation?
Introduction – Pre-processing CAD Application CAD Data CAD/PLM Import PLM Data 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 3 rd party CAD translators
CAD/PLM Import – Recent Focus Integration of HOOPS Exchange CAD translators Provides significant new import capabilities Read tessellation 3dxml import full linux support or geometry CGR import improved performance 3dxml Import
CAD/PLM Import – Continuous Quality Improvements Working with 3 rd 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 Edge projection Fillet/chamfer sketch
3D-CAD – New Solid Modeling Features Improved filleting options Sketch imprinting Extrude up to face/body
3D-CAD – Deployment in Vertical Applications 3D-CAD is fully scriptable parametric integrated for domain-specific development.
3D-CAD in Electric Motors Automatic creation of rotor, Motor specification in stator, magnets, and windings SPEED .xGDF format
3D-CAD in Electric Motors
3D-CAD in Battery Simulation Automatic creation of Battery specification components for battery cells from Battery Design Studio 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 CAD/PLM Import PLM Data STAR-CCM+ Meshing/Simulation Model definition Design idea No single solution to pre-processing needs Diverse, growing team with ambitious plans for the future!
Introdu oduction ction – Post st-pr proc ocessi essing What do you need to do to visualize analyze interrogate explore share your results during/after simulation?
External tools Presentation of results Quantitative results Data Analysis Statistics Design optimization STAR-CCM+ Meshing/Simulation Visual Interrogation Hardcopy Animation
Results Export Export solution data for use in other applications: – STAR-View+ – VRML – 3 rd party post-processors Communicate results with other CAE tools for co-simulation
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 Embed STAR-CCM+ scene data in documents or websites Lightweight files with free viewer
Quantitative Analysis Extract numerical and statistical data from simulations Monitors Plots Reports 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 Averaging along and periodic surfaces 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 Hardcopy Visual Interrogation Animation Feature Extraction 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 Continued growth of development team and focus on new features: CAD/PLM Import Data Analysis – Surface modeling – Tighter CAD integration STAR-CCM+ Meshing/Simulation – Faster visualization – Additional reporting – Advanced visualization techniques Innovative pre and post-processing solutions to meet and exceed customer demands and enable engineering success!
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