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Projection code: lid driven validation

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Old   March 12, 2011, 22:18
Default Projection code: lid driven validation
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Hi all,
I have written a C++ code for simulating flow using projection method. and i have set up the domain to simulate lid-driven cavity flow for validation. But i am unaware of the pressure boundary conditions that need to be implemented at the boundaries. I am using a fully staggered grid and presently using a boundary condition of dp/dn = 0 on all boundaries including the boundary in which shearing is done. I find that the poisson equation is giving a peak at the corners and diverging (i am using gauss-seidel method to solve the poisson equation). Can someone tell what the reason could be?

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lid driven cavity, projection method

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