CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   negative cell volume in dynamic mesh (http://www.cfd-online.com/Forums/fluent/34283-negative-cell-volume-dynamic-mesh.html)

WU zhonghua July 28, 2004 10:04

negative cell volume in dynamic mesh
 
To Flunet users, i am using a dynamic(deformed) mesh to study flapper valve movement in combustion chamber caused by the difference between the combustion gas and atomisphere pressure. when the program runing, it alaways show the message " error: update-Dynamic-mesh failed. negative cell volume detected error object: #f"

when i do the grid check, it shows in the console: checking face handedness zone 27: 8121 right-handed, 2-left-handed zone 7: 133 right-handed, 2-left-handed

i think the negative cell volume may be caused by the left-handed face handedness appeared in runing. the question is how to prevent this? should i change some controll parameters or remesh the grid? thanks for any suggestions.

WU Zhonghua


All times are GMT -4. The time now is 01:27.