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vertical gas-liquid separator problem with the convergence |
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October 5, 2011, 20:26 |
vertical gas-liquid separator problem with the convergence
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#1 |
Senior Member
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Dear friends, I have worked very hard on my thesis, but I have had problem with the convergence.
The boundaries conditions are: Inlet: bulk Velocities (volume fraction of each phase) Gas outlet (upper): pressure 0 psi Liquid outlet (down): 0.35 psi (hydrostatic) The model I am using is inhomogenues, specifically the particle model. I am using the gravity vector due to the fact that I am modelling the gravitational effect (densities difference) K-E for turbulence... My simulation starts running but after 25 iteration this message appears :A wall has been placed at portion(s) of an OUTLET | | boundary condition (at 100.0% of the faces, 100.0% of the area) | | to prevent fluid from flowing into the domain. I know what it means, the problem is that I have done several things but the problems continues. Who can HELP ME ... Thanks before hand |
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October 6, 2011, 07:09 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,696
Rep Power: 143 |
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October 6, 2011, 08:06 |
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#3 |
Senior Member
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Dear Glenn,
I think that my problem is on the boundaries Conditions!! Have you worked on this sort of problems before???? yours faithfullly JM |
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October 6, 2011, 18:16 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,696
Rep Power: 143 |
No, but I have a reasonable amount of general multiphase experience.
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October 20, 2011, 20:58 |
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#5 |
New Member
GDCG
Join Date: Oct 2011
Posts: 2
Rep Power: 0 |
Hi. Why are you using CFX? I am working in an oil-gas horizontal separator in FLUENT using eulerian model. I am using 0 pressure in the gas outlet and the oil column pressure in the oil outlet. I am fixing the operating conditions of pressure and density equal to separation pressure and gas density. I going to add you in my contacts to chat about this. Regards.
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October 21, 2011, 07:45 |
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#6 |
Senior Member
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dear Omen84
I would appreciate your help on this!! I look foward to contact you soon... Greetings.. JM |
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October 22, 2011, 00:18 |
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#7 |
New Member
GDCG
Join Date: Oct 2011
Posts: 2
Rep Power: 0 |
JULIOM I am not an expert, but I think that we can help each other sharing criteria. I just started a month ago to build the model with the help of CFD "experts" from CAVENDISH Company. This is my email gdg_84@hotmail.com
Regards |
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