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Boundary Issues in the Cell-Centered Compressible FHD #126
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@jbbel I have started this branch to check for the errors associated with boundary conditions in cell-centered compressible FHD: https://github.com/AMReX-FHD/FHDeX/tree/fix_compres_center |
do you view noslip at left boundary as ok? also do we see same behavior with adiabatic |
The behavior is the same with adiabatic. I think the no-slip is ok on the left (the difference could be in the noise -- but I will check closely). |
i believe I have identified the issue and fixed the problem. at least for noslip isothermal walls in z direction things seem to be correct |
The cell-centered code for compressible FHD has several outstanding issues listed below. A major re-factor of the code was performed in Feb 2022 for a better prescription of the Dirichlet boundary conditions in the PR #98. In this PR, Dirichlet boundary conditions are assigned at the boundaries rather than a linear extrapolation to ghost cells for increased numerical stability. However several issues have emerged, both after the PR (post-Feb version) and before the PR (pre-Feb version)
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