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June 21, 2012, 17:39 |
simple geometry and potentialFoam?
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Tobias Holzmann
Join Date: Oct 2010
Location: Bad Wörishofen
Posts: 2,711
Blog Entries: 6
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Hi all,
I have a problem with my project. I wanna make a combustion simulation with the flamelet solver but the solver is not working (no convergence - break down). So after that I decided to try it with the rhoSimpleFoam to get the flow field for the flamlet solver. Here the solver is still not running and I wanted to initialise the field with the potentialFoam but there are just uncorrect physical solutions (U > 1e6). Well I changed the geometry and simplifyed it till I reached a simple pipe (picture). But I cant initialise it with the potentialFoam and now i am wondering why? Its for my masterthesis and I am working on that problem since last friday. I thought there is a problem with my OF version or sth like that on my workstation but at home there is the same problem. Do someone have some ideas? potentialFoam can initialise the rhoSimplecFoam tutorial so it should be possible to initialise that simple pipe. Here my bc for U Code:
dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { inlet { type flowRateInletVelocity; flowRate constant 0.002; value uniform (0 -0 0.389333); } outlet { type inletOutlet; inletValue uniform (0 0 0); value uniform (0 0 0); } wall { type fixedValue; value uniform (0 0 0); } } Code:
dimensions [0 2 -2 0 0 0 0]; internalField uniform 1e5; boundaryField { outlet { type fixedValue; value uniform 1e5; } inlet { type mixed; refValue uniform 1e5; refGradient uniform 0; valueFraction uniform 0.3; } wall { type zeroGradient; } Hope for some help. Thanks in advance Tobi PS: I solved complex 2phase simulations and now I am not able to solve that problem. I do not know if I should cry or laugh about that situation |
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