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anyone like to explain previous time-step mesh compression flux?

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Old   June 10, 2019, 11:09
Default anyone like to explain previous time-step mesh compression flux?
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Ash Kotwal
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In an interFoam.C file, under dynamic mesh code, after if (mesh.changing())
there is an cautionary comment saying:
'do not apply previous time-step mesh compression flux!'
So, why is that?
In what applications I need to apply previous time-step mesh compression flux?
is it related to compressible fluid, and in-compressible fluid CFD simulations? or
is it just a C++/coding related cautionary comment?
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Old   October 4, 2023, 11:26
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Michael Sukham
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Have you worked it out? Because I had the same problem regarding the compression flux. In foamExtend, it is not there. It is a bit hard to figure out without having a test case .
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compression flux, interfoam, main c++ file, mesh, time-step

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