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July 20, 2015, 15:27 |
icoFoam with density
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#1 |
Super Moderator
Tobias Holzmann
Join Date: Oct 2010
Location: Tussenhausen
Posts: 2,708
Blog Entries: 6
Rep Power: 51 |
Dear all Foamers,
I want to ask for help, because at the moment I get stuck. Problem: I want to make a cavity case in which the bottom is cooled and therefore density change will force flow to compensate the density change. The flow is incompressible and laminar, hence this, I started to modify icoFoam to my problem.
Till here (thanks to Alex for support). Now my cavity case is cooled at the bottom, left right and top are opened and due to the temperature change I get a density change that should force flow to compensate this change (continuity has to be satisfied). While solving, I get the problem, that the Co no reaches 40000 and the solution is non physical. Already the first time steps are bad (1e-7). It would be a pleasure if someone can help me in that case, or has some information for me. I think made a mistake in the implementation of pEqn()
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Keep foaming, Tobias Holzmann |
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