negative volume error in dynamic mesh -- CFD Online Discussion Forums

August 13, 2019, 09:21

negative volume error in dynamic mesh

amdfzn

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amdfzn

Join Date: Mar 2019

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Hi All

I want to simulate a simple movement of a cube (which represents a human) in a room using dynamic mesh. I used tetrahedral elements for all of the domain and also smoothing and remeshing methods for updating the mesh and defined the surfaces of the cube as rigid body zone. After some time (about 0.1 to 0.2 s), negative volume error occurs. I tried to reduce the time step and also changed different parameters in dynamic mesh settings but none of them works and I still get the negative volume error. Can someone help me with that please?

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dynamic mesh, negative volume error

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