Automating 1D/3D CFD analysis workflows – Speed up design exploration of a Y-junction with Simcenter Amesim, STAR-CCM+ and HEEDS
2 likes2,348 views
The document details an automated co-simulation process for optimizing a y-junction design using Simcenter Amesim, Star-CCM+, and Heeds. It outlines the workflow for setting up 1D and 3D models, automating parameter variations, and analyzing results to enhance design efficiency. The integration of these tools improves productivity by streamlining the exploration of design space while minimizing user intervention.
![Unrestricted © Siemens AG 2018
Page 9 Siemens PLM Software
HEEDS for process automation
HEEDS drives both Simcenter Amesim and STAR-CCM+ to
automate the co-simulation.
Aim: determine influence of angle of the Y-junction over
unsteady fluid flow rate in the Y-junction pipe
Parameter variation : angle of Y-junction, 15° ≤ 𝛼 ≤ 180°
in steps of 15° (i.e. 12 designs in total)
Variable studied : pressure drop P at t = 1s, with the fluid
flow Q [L/min] imposed
Geometry of Y-junction
Evolution of inlet flow rate
HEEDS automates and expedites the design
space exploration process via streamlined
interfaces to directly interact with Simcenter
Amesim and STAR-CCM+ simulation models
Outlet 2
Outlet 3
Inlet 1
𝛼](https://image.slidesharecdn.com/simcenteramesimstar-ccmpheedsforautomatingy-junctionanglevariation-180220160906/85/Automating-1D-3D-CFD-analysis-workflows-Speed-up-design-exploration-of-a-Y-junction-with-Simcenter-Amesim-STAR-CCM-and-HEEDS-9-320.jpg)
Automating 1D/3D CFD analysis workflows – Speed up design exploration of a Y-junction with Simcenter Amesim, STAR-CCM+ and HEEDS
- 1. Automating 1D/3D CFD analysis workflows Speeding up design space exploration of a Y-junction with Simcenter Amesim, STAR-CCM+ and HEEDS Realize innovation.Unrestricted © Siemens AG 2018
- 2. Unrestricted © Siemens AG 2018 Page 2 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 3. Unrestricted © Siemens AG 2018 Page 3 Siemens PLM Software Cloud Licensing flexibility Simcenter™ Portfolio for Predictive Engineering Analytics Cornerstones for a future-proof engineering approach Covering full range of methods Analytics, reporting & exploration Deployment flexibility Openness & Scalability User experience Industry & engineering expertise Systems approach Collaboration & workflow Multidiscipline & multiphysics R F L P Controls 1D 3D TEST CFD
- 4. Unrestricted © Siemens AG 2018 Page 4 Siemens PLM Software Simcenter™ Portfolio for Predictive Engineering Analytics Simcenter System Simulation Solutions Simcenter Amesim Collaboration & workflow
- 5. Unrestricted © Siemens AG 2018 Page 5 Siemens PLM Software Simcenter™ Portfolio for Predictive Engineering Analytics STAR-CCM+ STAR-CCM+
- 6. Unrestricted © Siemens AG 2018 Page 6 Siemens PLM Software Simcenter™ Portfolio for Predictive Engineering Analytics HEEDS – Multidisciplinary design space exploration HEEDS
- 7. Unrestricted © Siemens AG 2018 Page 7 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 8. Unrestricted © Siemens AG 2018 Page 8 Siemens PLM Software Automated Y-junction co-simulation The Y-junction is actually a complex component that sometimes needs refinement for pressure drops or flow rate distribution computations in the branches. 3D CFD co-simulation can be used to complements the 1D system simulation approach in Simcenter Amesim. The goal is to generate lookup tables for variations in pressure drop P or flow coefficient Cq with the Y-angle. Performance variations can be explored manually, or we can leverage process automation to improve time efficiency. Y-junction Motivation Simcenter Amesim
- 9. Unrestricted © Siemens AG 2018 Page 9 Siemens PLM Software HEEDS for process automation HEEDS drives both Simcenter Amesim and STAR-CCM+ to automate the co-simulation. Aim: determine influence of angle of the Y-junction over unsteady fluid flow rate in the Y-junction pipe Parameter variation : angle of Y-junction, 15° ≤ 𝛼 ≤ 180° in steps of 15° (i.e. 12 designs in total) Variable studied : pressure drop P at t = 1s, with the fluid flow Q [L/min] imposed Geometry of Y-junction Evolution of inlet flow rate HEEDS automates and expedites the design space exploration process via streamlined interfaces to directly interact with Simcenter Amesim and STAR-CCM+ simulation models Outlet 2 Outlet 3 Inlet 1 𝛼
- 10. Unrestricted © Siemens AG 2018 Page 10 Siemens PLM Software Insight & Discovery Building knowledge of high performing designs 1 1 1 1 2 2 2 2 12 Mass Flow (kg/s) Power(kW) 0 10 20 30 40 50 0 5 10 15 20 Industrial Duct Fan Design Baseline Design Best Designs (Lowest Power) at Each Mass Flow Rate Multi-objective Pareto SearchSingle-objective Constrained Search Efficient Search Finding better designs, faster Mass Flow (kg/s) Power(kW) 0 10 20 30 40 50 0 5 10 15 20 Industrial Duct Fan Design Baseline Design Best Designs (Lowest Power) at Each Mass Flow Rate Multi-objective Pareto Search Cloud computing Linux cluster CAD or 1D Tools FEA or MBD Simulations Linux workstation Windows workstation CFD or Crash Simulations Multiple nodes and multiple cores per node Distributed Execution Using your available compute resources to accelerate testing Process Automation Simplifying the virtual prototype build process Automate Virtual Prototyping and Find Better Designs Discover Better Designs, Faster! Innovative Products and Technologies HEEDS Multidisciplinary Design Exploration Platform CAD Portals Geometry Exchange CAE Portals Simulation Tasks Python Scripting VCollab Visualization Automate Virtual Prototyping and Find Better Designs Process Automation ASSESSEXPLORETESTBUILD Insight & Discovery Distributed Execution Efficient Search Aircraft Static Air Mixer Design HEEDS
- 11. Unrestricted © Siemens AG 2018 Page 11 Siemens PLM Software Capabilities of interest for this automated Y-junction project Automatic execution Process automation Streamline workflows Leaves time for other tasks Intuitive to use Boosts productivity • Automate a repetitive task • No user intervention • Automatic design changes • Less error-prone • Larger adoption across company
- 12. Unrestricted © Siemens AG 2018 Page 12 Siemens PLM Software Process managed by HEEDS Workflow managed by HEEDS in combination with Simcenter Amesim and STAR-CCM+ Change parametric CAD in STAR-CCM+ Mesh STAR-CCM+ model Execute Simcenter Amesim/STAR-CCM+ co-simulation Store 1D/CFD co- simulation results Outlet 2 Outlet 3 Inlet 1 𝛼 List of angle parameters angles All results HEEDS POST N Tasks are looped N times, automatically
- 13. Unrestricted © Siemens AG 2018 Page 13 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 14. Unrestricted © Siemens AG 2018 Page 14 Siemens PLM Software 1D model setup within Simcenter Amesim Simcenter Amesim sketch for providing boundary conditions Initial tasks include running the 1D & 3D models separately, then the co-simulation setup, meshing and a test run Flow boundaries for each branch of a junction : • volumetric flow rate at the inlet • pressure sources at the two outlets Simcenter Amesim Flow field inside the junction: • definition of the geometry • pressure at the inlet • mass flow rate at the outlets • isothermal case in this case STAR-CCM+ • The simulation is run across the two solvers which are strongly coupled
- 15. Unrestricted © Siemens AG 2018 Page 15 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 16. Unrestricted © Siemens AG 2018 Page 16 Siemens PLM Software 3D CFD model setup within STAR-CCM+ STAR-CCM+ CAD modeler to create the Y-junction CAD Mesh of the Y-junction • Parameterization of the angle using STAR-CCM+ CAD modeler • Only ½ of the pipe considered CAD • Mesh : 3D polyhedral + prism layers • Pipeline workflow in STAR-CCM+ ensures automatic re-meshing in case of any change in geometry Mesh • Implicit unsteady • 𝑘 − 𝜖 turbulence model • Segregated solver Numerical model
- 17. Unrestricted © Siemens AG 2018 Page 17 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 18. Unrestricted © Siemens AG 2018 Page 18 Siemens PLM Software HEEDS automation process for angle variation of Y-junction Define processes… vertical process STAR-CCM+ Including a model is as simple as a drag and drop Simcenter Amesim
- 19. Unrestricted © Siemens AG 2018 Page 19 Siemens PLM Software HEEDS automation process for angle variation of Y-junction Define parameters and tags… Simcenter Amesim Parameter Tag type File / Input type Type Value Pressure at outlet Variable LMS Amesim Constant 0 Pa Positive half angle Variable STAR-CCM+ design parameter Continuous 15° ≤ 𝛼 ≤ 180° resolution = 12 Negative half angle Variable STAR-CCM+ design parameter Dependent −1 × 𝐻𝑎𝑙𝑓 𝐴𝑛𝑔𝑙𝑒 Mass flow rate at inlet Response LMS Amesim (Last Value) Tag ---- Pressure drop Response STAR-CCM+ Report Tag ---- HEEDS STAR-CCM+
- 20. Unrestricted © Siemens AG 2018 Page 20 Siemens PLM Software HEEDS automation process for angle variation of Y-junction Define study • Study type: evaluation only • Define cases in a single design set • Click run HEEDS
- 21. Unrestricted © Siemens AG 2018 Page 21 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 22. Unrestricted © Siemens AG 2018 Page 22 Siemens PLM Software Result of the HEEDS analysis HEEDS takes care of all changes in the models and executes the co-simulations HEEDS captures all the STAR-CCM+ scenes and plots. The user saves time and can perform other tasks HEEDS POST Correlation plot
- 23. Unrestricted © Siemens AG 2018 Page 23 Siemens PLM Software Results for 4 angles of Y-junction 𝛼 = 30° 𝛼 = 75° 𝛼 = 120° 𝛼 = 180° • Easy workflow and straightforward integration of the models • Exploring the design space is just a few clicks away! • Minimal user intervention required • Easy trade-off investigations • Higher productivity Velocity vectors for 4 Y-junction angles (different color scales)
- 24. Unrestricted © Siemens AG 2018 Page 24 Siemens PLM Software Result of HEEDS analysis HEEDS allows users to draw multiple plots in a view The plots can be synced enabling users to gain greater insight HEEDS POST HEEDS plot view capability
- 25. Unrestricted © Siemens AG 2018 Page 25 Siemens PLM Software Agenda • Introduction to the product portfolio • Motivation for the automated Y-junction co-simulation • Set-up the Simcenter Amesim model • Set-up the STAR-CCM+ model • Set-up the HEEDS automation process • Results of the HEEDS analysis • Going further
- 26. Unrestricted © Siemens AG 2018 Page 26 Siemens PLM Software Help documentation in HEEDS HEEDS Getting Started Guide
- 27. Unrestricted © Siemens AG 2018 Page 27 Siemens PLM Software HEEDS-Simcenter Amesim training HEEDS-Simcenter Amesim tutorials based on applications
- 28. Realize innovation. Karim NASSAR Stéphane NEYRAT Simcenter Amesim Platform Jean-Pierre ROUX Ian HOGG HEEDS Siemens PLM / Simulation & Test Solutions Department