Fluids

Fluids

Update-Dynamic-Mesh failed. Negative cell volume detected.

    • pascuan
      Subscriber

      Hello all. 


      I am running a finite/rate species transport of methane combusting to move a block based on pressure. My reaction works fine but i always get a negative cell zone when i am lowering the time step i started from 1e-6 now failing at 1e-10. Is there any recommendations for this? I have attached some reference


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    • Rob
      Ansys Employee

      That looks like you're turning the cells inside out. If the object is just moving and not deforming have a look at layering. Use the in-cylinder tutorials & examples to guide the set up. 

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