|August 31, 2012, 17:44||
Boundary conditions for a density-driven flow
Join Date: Jan 2012
Posts: 1Rep Power: 0
I am trying to simulate a density-driven flow which is induced by a cooling source inside the computational domain. The flow will drop from a certain height (underneath a inlet boundary) due to temperature and negative buoyancy, and then impinge on a wall. I used pressure inlet and outlet boundaries but results (temperature) got divergent. I used k-omega SST model for turbulence and ideal gas law for fluid property.
I did this successfully in a 2-D axis-symmetric domain but got divergent in a 3-D simulation.
Does anyone know what boundary conditions should I use in this case? What caused the divergence?
|Thread||Thread Starter||Forum||Replies||Last Post|
|Inlet Boundary conditions for pressure driven flow in DSMC||Jesgonse||OpenFOAM Programming & Development||5||October 3, 2014 09:52|
|non reflective boundary conditions for incompresible flow||Pascal_doran||OpenFOAM Programming & Development||15||August 7, 2014 05:55|
|mass flow in is not equal to mass flow out||saii||CFX||2||September 18, 2009 08:07|
|Warning 097-||AB||CD-adapco||6||November 15, 2004 05:41|
|Boundary conditions?||Tom||Main CFD Forum||0||November 5, 2002 02:54|