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Handling boundaries in pressure equation using HYPRE

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Old   March 12, 2014, 06:00
Default Handling boundaries in pressure equation using HYPRE
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Hadi Zolfaghari
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When you pass your pressure domain to HYPRE solver, you need to give it the neighbor coefficients. This is implemented simply for the inner cells but for boundary cells(i.g. inlet and outlet in a pipe) it would be tricky. Because the solver eliminates the coefficients which are out of borders. Like upper neighbor cell coefficient in the outlet. How I can handle this problem?
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hypre, poisson equation

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