interFoam's UEqn.
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Hi guys,
In thies UEqn we have: Code:
solve Code:
solve |
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is the surface normal gradient that is defined on the face of the cell. (Which explains why interface.sigmaK is interpolated from the cell center to the face before performing the multiplication.) fvc::reconstruct reconstructs the cell centered values from the face values. Hope this helps /Eysteinn |
2 Attachment(s)
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I tried to revise it into this: Code:
if (pimple.momentumPredictor()) |
I have not used this solver, but my (wild) guess is that this is used to resolve some
convergence problems with the momentum equation. When you ran the cavity case was the momentumPredictor set to yes under pimple in the system/fvSolution? /Eysteinn |
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Hi
I am also curious about it. Anybody has a comment on this issue? |
Using cell centered values is not consistent and can lead to problems. I think you can find details in S. S. Deshpande, L. Anumolu, and M. F. Trujillo, Computational Science & Discovery 5, 014016+ (2012), ISSN 1749-4699, URL http://dx.doi.org/10.1088/1749-4699/5/1/014016. (which anyone working with interFoam should read).
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