Interesting question

Interested

Hi Samin,

you can use the Deformed Mesh Interfaces for your simulation. Maybe you should rebuild the geometry as an assembly, so that you can define the movement, but it depents on the case. Chech the following links for more information:

https://www.comsol.com/blogs/deformed-mesh-interfaces-rotations-and-linear-translations/

https://www.comsol.com/blogs/model-translational-motion-with-the-deformed-mesh-interfaces/

Here are also some examples you can follow:

https://www.comsol.com/model/modeling-deforming-meshes-30561

Here you can find a paper of mine, where this technique was used in a more complex example of moving heat source in laser welding simulation:

Article Equivalent heat source approach in a 3D transient heat trans...

Good luck!

Best regards,

Antoni Artinov

Thank you Antoni Artinov

But I think I didn't express my question well; because I think your answer isn't exactly related to my question.

Fortunately I found the answer: The "prescribed displacement" option in

"FSI" physics helped me to define the movement for each point.

Hi Samin,

the FSI physics is also more or less based on the moving mesh approahc, which is described in the shared links. There you use the prescribed displacement option to define the movement as well :).

Best regards,

Antoni