negative volume error in dynamic meshing

  • Last Post 19 March 2019
habibahmad posted this 17 March 2019

I am dealing with a problem related to dynamic meshing. when I use dynamic meshing preview option it shows an error regarding negative cell volume after 0.44 second current time step. I have reduced the time step too but in vain. please help me get out of this problem.



Order By: Standard | Newest | Votes
rwoolhou posted this 18 March 2019

Please post some images. You may need to further reduce the time step and/or review the remeshing as it's possible the way it's defined is causing the problems. 

kkanade posted this 19 March 2019

few things to check. 

what is min orthogonal quality?

how is the mesh distribution? please insert some images. 

are you using smoothing, remeshing?

are you using any udf?