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-   -   using forces for geting drag and lift force magnitude? (http://www.cfd-online.com/Forums/main/81250-using-forces-geting-drag-lift-force-magnitude.html)

510_ October 21, 2010 00:23

using forces for geting drag and lift force magnitude?
 
Hi guys,

I am looking for the drag and lift forces on solar panel in a wind tunnel.

I've been looking at postprocessing forces but I couldn't get it to work.
I put forces function on my controlDict, do i need to change any other files?

What are the command use to find these forces? i've been using foamCalc but it keep comming with

Quote:

Create time

Create mesh for time =0

Time=0
No P

Time=0.25
No P

Time=0.5
No P

End
What do I miss? :confused:

any pointers would be appreciated

harishg October 26, 2010 22:21

It seems that the field P (pressure?) is not saved at each of the time instants. Check that the required fields are written to the folder.

510_ October 28, 2010 11:42

I've got it figured out, not to sure what was the problem but.. I was just kept dwelling on it and got the figures.. thanks for the reply! :)


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