Solver for a ventilation problem

vizag · December 25, 2008, 08:15

Hi all!
I am trying to build a solver for simulating the flow inside closed room.
i guess, i have to use an incompressible flow solver,with turbulence enabled.(steady or unsteady).

Somebody, please suggest me a solver on which i can build my problem specific solver.

cheers!!

paulo · December 25, 2008, 10:09

Hi Cruiser,

If your problem is isothermal, then simpleFoam is what you need.

Regards,

Paulo Rocha

tian · December 25, 2008, 10:31

Hi,

you also can use bouyantSimpleFoam or with radiation: bouyantSimpleRadiationFoam.

I got many good experience with both solvers.

Bye
Tian

vizag · December 25, 2008, 10:38

Hi!
Thanks for the replies!
surely, my problem is isothermal.
but i am afraid, the compressible solver may take longer to converge,if i use buoyantSimpleFoam.
there is no radiation either in the problem.
should i build a solver from turbFoam?

hellorishi · February 6, 2009, 11:34

Hello Cruiser

Looking at what the buoyantSimpleFoam tutorials, it seems like a good solver for your case. If you run the tutorial hotRoom or hotBox, it will converge in short time (few minutes on standard workstation/PC).

If you have already managed to run the simulation, I would like to know the paramters you used. I am having trouble running a similar ventilation case. Its not converging. Kindly help if you can.

:Rishi

December 25, 2008, 08:15	Hi all! I am trying to build	#1
vizag New Member cruiser Join Date: Mar 2009 Posts: 3 Rep Power: 17	Hi all! I am trying to build a solver for simulating the flow inside closed room. i guess, i have to use an incompressible flow solver,with turbulence enabled.(steady or unsteady). Somebody, please suggest me a solver on which i can build my problem specific solver. cheers!!

December 25, 2008, 10:09	Hi Cruiser, If your problem	#2
paulo Member Paulo Alexandre Costa Rocha Join Date: Mar 2009 Posts: 71 Rep Power: 17	Hi Cruiser, If your problem is isothermal, then simpleFoam is what you need. Regards, Paulo Rocha

December 25, 2008, 10:31	Hi, you also can use bouyan	#3
tian Senior Member Tian Join Date: Mar 2009 Location: Berlin, germany Posts: 119 Rep Power: 17	Hi, you also can use bouyantSimpleFoam or with radiation: bouyantSimpleRadiationFoam. I got many good experience with both solvers. Bye Tian __________________ BIM HVACTool, The Green Building Simulation Tool for OpenFOAM, Energy Plus and Radiance.

December 25, 2008, 10:38	Hi! Thanks for the replies!	#4
vizag New Member cruiser Join Date: Mar 2009 Posts: 3 Rep Power: 17	Hi! Thanks for the replies! surely, my problem is isothermal. but i am afraid, the compressible solver may take longer to converge,if i use buoyantSimpleFoam. there is no radiation either in the problem. should i build a solver from turbFoam?

February 6, 2009, 11:34	Hello Cruiser Looking at wh	#5
hellorishi Senior Member Rishi . Join Date: Mar 2009 Posts: 149 Rep Power: 17	Hello Cruiser Looking at what the buoyantSimpleFoam tutorials, it seems like a good solver for your case. If you run the tutorial hotRoom or hotBox, it will converge in short time (few minutes on standard workstation/PC). If you have already managed to run the simulation, I would like to know the paramters you used. I am having trouble running a similar ventilation case. Its not converging. Kindly help if you can. :Rishi

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