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Variants of the algorithm - SIMPLER
[ Suhas Patankar. Numerical heat transfer and fluid flow. CRC press, 1980.]
SIMPLE Revised
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Dirichlet boundary conditions
zero line in
With the details of this sparsity pattern zero line in leads to singular matrix
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Fixed pressure in one cell
With the details of this sparsity pattern line with one 1 in leads to singular matrix as does not fixing any pressure
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