|August 15, 2010, 08:03||
Pressure calculation problem
Join Date: Apr 2010
Posts: 28Rep Power: 7
Hi, before I post about the convergence problem using simplFoam.
SimpleFoam convergen problem
Now I guess I found the reason that induce the convergence problem.
Here is my situation.
I was calculating water flowing in two parallel pipe which are connected i with a 1mm gap n the middle as shown in the attached figure. The problem is that the pressure between two channel is a little bit different, there are some fluctuation. I think this maybe the reason that the calculation is difficult to converge. I am not sure how to solve this problem.
The reynolds number in the pipe is about 6500, but in the gap, almost laminar flow. So now I am using low-Re turbulent model to calculate.
I attached the pressure, velocity distribution along the line that cross of the middle of pipe and the gap.
Ux1 means velocity at z1 position, and Ux2 means the one at z2 position.
Sincerely hope some one can give me some advice.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Calculation of the Governing Equations||Mihail||CFX||7||September 7, 2014 06:27|
|Problem with centrifugal pump calculation||Michiel||Main CFD Forum||2||June 17, 2012 21:32|
|[FloWorks] Request advice for an airfoil calculation problem||Bogey Jammer||Main CFD Forum||0||September 29, 2009 17:06|
|Head pressure loses problem.......||krecki||CFX||1||March 25, 2008 18:46|
|pressure gradient term in low speed flow||Atit Koonsrisuk||Main CFD Forum||2||January 10, 2002 11:52|