# Understanding of potentialFoam's pressure equation

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 July 9, 2010, 04:17 Understanding of potentialFoam's pressure equation #1 Member   Jianye Xia Join Date: Mar 2009 Posts: 32 Rep Power: 8 Hello, OFers! I have read about the wiki page describing about the solver of potentialFoam at :http://openfoamwiki.net/index.php/PotentialFoam the pressure equation for potential flow is , but the implementation of the potentialFoam is as follows: Code: ``` 00059 fvScalarMatrix pEqn 00060 ( 00061 fvm::laplacian 00062 ( 00063 dimensionedScalar 00064 ( 00065 "1", 00066 dimTime/p.dimensions()*dimensionSet(0, 2, -2, 0, 0), 00067 1 00068 ), 00069 p 00070 ) 00071 == 00072 fvc::div(phi) 00073 ); 00074``` why it is not as the equation described in the wiki page? and how to dervie this equation?

 July 13, 2010, 09:39 #2 Member   Jianye Xia Join Date: Mar 2009 Posts: 32 Rep Power: 8 Nobody could help me? or my question is too stupid?

July 14, 2010, 11:25
#3
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Robertas N.
Join Date: Mar 2009
Location: Kaunas, Lithuania
Posts: 52
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Quote:
 Originally Posted by bioexplore Nobody could help me? or my question is too stupid?
There is a similar question, maybe this helps:
Understanding icoFoam.C

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