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guidelines for dynamicMesh for piston motion

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Old   May 8, 2023, 07:41
Unhappy guidelines for dynamicMesh for piston motion
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Hello guys,
I need to simulate the motion of a piston that has the motion shown in the figure below.

so basically the piston doesn't press on the whole fluid region, there are liquid surrounding the piston.

In this problem, I know that I need mesh motion + topology changes (sliding interface and layer addition/removal). I saw many videos and many posts on this forum but I am still confused.

My questions are:
1. Is there a dynamic mesh library that can work with this problem directly? (I tried
but it doesn't compress the liquid because it deals with it as a solid. Also, I tried
but It doesn't know how to deal with sliding interface.)

2. If there is not a direct library to use? what libraries shall I combine their features? and I want some guidelines in this process.

Thank you so much.
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dynamicmesh, engine, layer addition/removal, piston, sliding interface

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