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how to add pressureGradientExplicitSource in the PISO algorithm?

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Old   June 6, 2012, 06:02
Default how to add pressureGradientExplicitSource in the PISO algorithm?
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Hello Everyone,

I am simulating the laminar steady pipe flow, the flow is driven by pressure gradient. Firstly,I add a constant of dp/dx in the UEqn Matrix, the velocity seems right but the pressure is wrong. Even after changing the varies BCs, the solution still wrong.
I find there is pressureGradientExplicitSource codes in the OF, but do somebody could tell me how to add it into the icoFoam solver? Thanks in advance.

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