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#1 |
New Member
rosa amerian
Join Date: Aug 2009
Posts: 1
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Hello all,
I am a PhD student, writing a CFD code for a laminar flow in cylindrical axisymetric coordinate. I can not converge my code ![]() I will be so thankful if anybody can send me the boundary conditions of Pressure correction equation in SIMPLE algorithm. Thanks everybody. Good Luck |
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#2 |
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Normaly there are 2 kinds of conditions at boundary, either the pressure at boundary is given and normal velocity is unknown or vice versa.
1.Given pressure : if guessed pressure field is arranged such that at boundary P*= Pgiven, then value of the P' at the boundary will be zero. 2.Given normal velocity: for example if the velocity has be given just at western face, just the coefficient of aw at pressure correction Eq will be zero, and other coefficients don't change. and u* at west shouldn't be corrected. (because it is given as boundary condition and does not change) ![]() |
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#3 |
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Join Date: Mar 2009
Posts: 55
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Have a look at the book 'An introduction to computational fluid dynamics, the finite volume method' by H. K. Versteeg & W. Malalasekera.
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finite volume, pressure correction, simple |
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