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-   -   Size of control volume (http://www.cfd-online.com/Forums/openfoam/67957-size-control-volume.html)

nomad September 1, 2009 22:13

Size of control volume
 
Hi,
Why do the results change drastically if I increase the size of the control volume (eg. the mesh around an airfoil)?
The result should improve for a bigger control volume, however in my case the results diverge.
Thanks.

chbenz September 2, 2009 02:28

Hi John,

in most cases you obtain a better result as much as fine your mesh is. Not the other way. An exception from this rule is for example spray-simulation.

Christof


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