|July 16, 2007, 15:01||
Hello, Is there somebody wh
Join Date: Mar 2009
Location: Todtnau, Germany
Posts: 116Rep Power: 8
Is there somebody who could explain the implemented boundary conditions for buoyant flow to me?
I would like to compute flow through a channel or tube (buoyantFoam or buoyantSimpleFoam) and I am not quite sure which boundary conditions are appropriate.
What exactly does fixedFluxBuoyantPressure do? I assume it would extrapolate the pressure from the field to the boundary - taking into account the gradient due to gravity. Is this correct? What exactly is the value that has to be specified?
For inlet and outlet conditions conditions I am a bit stuck on what to use. My experiments so far ended in either a blow-up or completely useless results.
Any help would be really appreciated.
|November 25, 2012, 08:49||
Join Date: Jun 2012
Location: Torino, Italy
Posts: 676Rep Power: 8
I dont know the mean buoyantpressure and fixedFluxBuoyantPressure either, did you figure it out?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Burgerbs equation non constant Boundary Conditions Initial Conditions||arkangel||OpenFOAM Running, Solving & CFD||1||October 2, 2008 14:48|
|Boundary conditions for turbulent boundary layer||Thomas||FLUENT||1||June 17, 2008 05:14|
|Integral boundary conditions turbulent intensitylength boundary conditions||olesen||OpenFOAM Running, Solving & CFD||0||July 27, 2006 07:18|
|Pressure boundary & buoyancy||Bouke||Main CFD Forum||2||October 22, 2002 11:37|
|Pressure boundary on buoyancy-driven flow||raymond||CD-adapco||1||September 20, 2001 05:25|