As part of the R2025x FD01 user assistance, SIMULIA R&D has created a new 3DEXPERIENCE example that teaches you how to perform a coupled Eulerian-Lagrangian (CEL) analysis using simulation. In this example, you model air flowing past a rubber flap. To define, run, and evaluate this simulation, you use the following apps:
- Bookmark Editor
- Material Definition
- Mechanical Scenario Creation
- Part Design
- Physics Results Explorer
- Product Structure Design
- Sketcher
- Structural Model Creation
A CEL analysis is commonly used for models that include parts from materials that have significantly different Young’s moduli, making one part more easily deformable than the others. By combining Eulerian and Lagrangian approaches, you can compute the mesh deformations of these disparate parts more efficiently and with high accuracy.
In this example, the airflow is much more deformable than the flap, so you perform a CEL analysis to improve computational performance. While completing this example, you learn to sketch a simple geometric model composed of two parts, and then you apply Eulerian or Lagrangian properties to the appropriate parts. In addition, you run a simulation that predicts the extent of flap deformation and the path of the airflow around the flap. You can use what you learn from this example to implement CEL analysis in your own simulations that involve materials of drastically different Young’s moduli.
To try this example yourself, see Coupled Eulerian-Lagrangian Analysis of Airflow Past a Rubber Flap.
Thank you to @DW, @JA, @JJ, and @AS for all their effort in bringing this example to life!
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The 3DEXPERIENCE Simulation Examples Team would like to hear your ideas for new examples. If you have an idea, please leave a comment below so that the team can contact you. The team also welcomes feedback on any of its existing examples.
Overview of 3DEXPERIENCE simulation examples
