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-   -   Moving boundary Issue (http://www.cfd-online.com/Forums/fluent/37551-moving-boundary-issue.html)

Andy August 11, 2005 18:21

Moving boundary Issue
 
Hi Friends,

I am modeling a injector needle movement using 2D axisymetric model with the moving boundary, th eprofile is a parabolic shape. When reviewing the movement, negative volume always appear near 75% of the stroke. But if I change the cell height of the moving boundary to a much larger one (10 times of the others) together with a collapse factor 1, the movement could finish. But in this way, it will generate continuity convergence problem when I analysis. Could somebody help me with this issue?


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