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-   -   small size cell problem(moving mesh) (http://www.cfd-online.com/Forums/cd-adapco/56053-small-size-cell-problem-moving-mesh.html)

Elyor May 12, 2007 23:27

small size cell problem(moving mesh)
 
Hi guys, i generated moving mesh for sliding vane pump, in order to change cell position i used filling. when i run the solver solution diverge after some iter. then i checked result velocity is a very hight in smallest size of mesh(0.001 mm) i think velocity difference in biggest cell(0.41mm) and smallest cell(0.001mm) is too big that's why solution is unstable. how can i decide smallest cell, please advise.


Elyor May 12, 2007 23:45

small size cell problem(moving mesh)
 
Hi guys, i generated moving mesh for sliding vane pump, in order to change cell position i used filling. when i run the solver solution diverge after some iter. then i checked result velocity is a very high in smallest size of mesh(0.001 mm) i think velocity difference in biggest cell(0.41mm) and smallest cell(0.001mm) is too big that's why solution is unstable. how can i decide smallest cell, please advise.


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