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November 25, 2012, 05:28 |
About internalField p in OpenFOAM
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#1 |
Senior Member
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 838
Rep Power: 17 |
Hi Foamers:
I see the internalField of p and p_rhg is uniform 0 in many cases, and I change "0" to any value such as "5000","10000", the result is the same. you can try it in damBreak case.the different value of internalfield p has totally no compact to the result. I dont know why. I would be appreciated if you can give me some hints. |
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November 25, 2012, 11:57 |
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#2 | |
Member
Florian
Join Date: Nov 2009
Posts: 59
Rep Power: 16 |
This is true for incompressible solvers. Changing the pressure has no effect on the result but a pressure higher by the some amount everywhere.
From http://www.cfd-online.com/Wiki/Incompressible_flow Quote:
Regards, Florian |
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November 25, 2012, 20:06 |
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#3 | |
Senior Member
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 838
Rep Power: 17 |
Quote:
In that wikki, it surely makes sense, but I think , does this problem be ralated to the PISO or SIMPLE algorithm? |
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November 26, 2012, 03:16 |
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#4 |
Senior Member
Dongyue Li
Join Date: Jun 2012
Location: Beijing, China
Posts: 838
Rep Power: 17 |
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