ST STAR AR-CCM+ / Optimate Kynan Maley ey
Optimate Descr crip iptio ion Proce cess ss Study exampl ples Toke ken based licensi sing Summary
Optimate STAR-CCM+ M+ add-on on Easy y to use! Pan anel to setup multip iple ST STAR-CCM+ + analys yses – Scriptless Automation – Leverage STAR-CCM+ design space Five ava availab able study y types – Design Exploration – Design of Experiment – Robustness – Optimization – Pareto Optimization Setup is all done within in STAR-CCM+ + envir vironment Optimat ate performs the fo followin ing – Creates all necessary scripting – Submits and monitors jobs – Collects the simulation data – Post-process the study
Study dy Type pes Desig sign Explor loration on – Supplied inputs – Test replication Optimization on – Global and local design space exploration – Identify important variables – Pareto optimization • Identify set of optimal designs – Uses SHERPA algorithm Desi sign of Experiment – Local design space exploration – Response surface models Robust stness s Analysis lysis – Characterize design due to input variation – User supplies probability distribution
Curr rren ently y Suppor orted ed Variabl bles es 3D-CAD 3D AD Design Parameters Boundary Physics cs Values – Any scalar quantity – Velocity magnitude – Translation Components – Mass flow rate Motion ons – Static temperature – Rotation rate – Static pressure – Translational velocity – Total temperature Part Swapp pping – Total pressure – CAD parts – Mach number Region ion Physics ics Values – Flow angles (modifies ‘wind’ CS) – Volumetric heat source – Mass fractions Mesh Settings – Wall roughness – Base size – Turbulence scalars Field ld Function ons – Thermal scalars – User scalar field functions
Design gn Explora oration on Exampl ple Proble blem External aerodynamics Imported CAD combined with 3D-CAD model Goals ls Investigate mirror placement effects on vehicle aerodynamics Modify position of side view mirrors
Design gn Explora oration on Exampl ple
Design gn Explora oration on Post-pr processi essing
Extern ernal Ae Aerodyn rodynamics Joint Common Missile
Design gn Explora oration on
Design gn of Experi erimen ent Exampl ple Pipe Flow ow – Investigate blockage size on pressure drop Bloc ocka kage created in 3D-CAD AD – Thickness – Depth Latin in hypercu cube be sampli pling Ran 10 cases
Design gn of Experi erimen ent Exampl ple
Optimization on Algori orithm Propr prie ietary SHERPA A / MO-SHE HERPA algor orith ithm Effici icient – Fewer evaluations required – Rapid setup – No iterating to find best method – Solution first time more often Easy sy to use: – Simply define problem and number of evaluations – No tuning – No optimization expertise required Robust st – Finds better solutions more often for broad classes of problems
Paret eto o Optimization on Exampl ple Util iliz ize pow ower of MO-SHE HERPA A algor orith ithm – Better solutions in fewer iterations Elect ctron onics cs cooling – Conjugate heat transfer Pin config iguratio ion parameteriz ized – Spacing – Height – Diameter – Taper Optim imiz ization ion object ctiv ives – Minimize pressure drop – Minimize chip temperature Ran 100 cases
Paret eto o Optimization on Exampl ple
Optimate e Licensi sing Enable bles many concurrent jobs s all derived from same parent sim file STAR ST AR-CCM+/ +/Opt ptim imate – Design Exploration, Design of Experiment, Robustness modes ST STAR AR-CCM+/Optim ptimate+ – All modes (including Optimization and Pareto Optimization) STAR ST AR-CCM+/ +/Power Toke kens – Used only during run – Counts as STAR-CCM+ Session or STAR-HPC – ex. 100 tokens • 1 concurrent job on 100 cpus, 10 concurrent jobs on 10 cpus, 100 concurrent jobs on 1 cpu
Learn rn More Know owled ledge Databa base se – suppor ort.cd-ada dapco. o.com om – Evaluation Mode Demonstration – Pareto Optimization Mode Demonstration
Summary Optim imate is a ST STAR-CCM+ + add-on on Five avail ilable ble study types – Design Exploration – Design of Experiment – Robustness – Optimization – Pareto Optimization Optim imate licensin sing scheme – Designed to run lots of similar jobs concurrently Tutor orial l videos os on Know owled ledge Base se Av Avail ilable le now ow
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