|February 18, 2013, 05:31||
Convergence problem when use gravity
Join Date: Jul 2012
Posts: 13Rep Power: 5
I have a model with gravity and the boundaries should have constant static pressure (not considering the gravity body force). I am trying to model a flow field with specific static pressure boundary faces and gravity. existance of gravity (as a body force) should affect the flow.
I tried both "Stagnation Inlet" and "Pressure Outlet" and I used field function below for boundary condition as total pressure.
(I should say, I used the correct syntax, I am just explaining the concept here)
"static pressure inlet"+ 0.5*Density*V^2 + Density * gravity * distance
"static pressure outlet"+ 0.5*Density*V^2 - Density * gravity * distance
in all cases that I have the "gravity" term, my simulation is not getting converge.
I really do not know what else should I try.
I aapreciate it if anybody can help.
|April 10, 2013, 10:18||
Join Date: Jun 2011
Posts: 1,276Rep Power: 18
Please post a picture of your domain with some explanations. I have a quite similar problem (in Fluent)...
The skeleton ran out of shampoo in the shower.
|convergence problem, gravity, star ccm, star-ccm+|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Submerged fin, Convergence problem||supermouniette||FLUENT||10||July 6, 2009 10:47|
|Convergence of CFX field in FSI analysis||nasdak||CFX||2||June 29, 2009 01:17|
|convergence problem in comsol||anderson||Main CFD Forum||0||February 24, 2008 17:54|
|3D Fluid Flow Convergence problem||Emily||FLUENT||2||March 21, 2007 23:18|
|Non Convergence of 3D Heat transfer cfd problem||Balraj||Main CFD Forum||3||December 9, 2004 01:24|