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May 13, 2013, 10:48 |
Low Mach rhoCentralFoam
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#1 |
New Member
Ali
Join Date: May 2013
Posts: 9
Rep Power: 12 |
Dear all
Is there anybody who can help me that how can I setup the rhoCenteralFoam solver for low speed (or low Ma, or low Re) flows? the geometry consists of a simple parallel plate at micro scale. My solutions are wrong (for example a reverse flow appears along he channel) . It seems the solver did not solves for rho (it prints No iteration = 0 for rho, rhoUx and rhoUy. how can I fixed it? |
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May 23, 2013, 05:11 |
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#2 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
Hi Ali
it solves continuity equation to obtain rho by "diagonal solver" so rho residuals are zero means exact solution as other compressible solvers like rhoPimpleFoam. that trouble with reversed flow is related to bad BC in outlet.
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May 25, 2013, 09:49 |
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#3 |
New Member
Ali
Join Date: May 2013
Posts: 9
Rep Power: 12 |
Dear Ehsan
Thanks for your kind informations. Yes the problem was with the BC as well as IC which is solved now. |
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May 25, 2013, 10:57 |
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#4 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
your welcome
I'm also intersted in micro scales. which university are you in? could you send me your case?
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Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. |
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