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SIMPLE_ Pressure Boundary condition at the pipe wall

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Old   July 30, 2009, 10:18
Default SIMPLE_ Pressure Boundary condition at the pipe wall
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hello all

i want to write a computer code to solve Navier-Stokes equation (internal flow) by using SIMPLE algoritym. for pressure correction equation (possion equation), i need pressure boundary conditions at the pipe wall. what kind of boundary equation can be used at there.

sorry for my bad english
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Old   July 30, 2009, 10:20
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At the walls you specify the velocity (no slip) not the pressure. If you need the pressure at the wall you can interpolate from the interior nodes
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Old   July 30, 2009, 14:40
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but there are no point to interpolate at the walls.you mean p(surface) equal p(surface-1)?
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