|July 14, 2011, 20:48||
Low pressure result in low velocity region for RNG-ke?
Join Date: Apr 2011
Posts: 6Rep Power: 7
I have ran a SimpleFOAM RAS -RNG- K-e model of a ball vale at a small % opening position, as an axi symmetric model.
At the moment I have using PCG with a preconditioner of GAMG for the pressure calculations in fv schemes:
for K U and epsilon
My relaxation factors are:
My result has an extremely low pressure region in area of low velocity. I feel as though this is not correct and am not sure what to do to optimize the model and get a better result. I have tried adjusting delta T and write time in controldict. I can get pressure residuals to converge but still have the same result
|Thread||Thread Starter||Forum||Replies||Last Post|
|Calculation of the Governing Equations||Mihail||CFX||7||September 7, 2014 06:27|
|Is Fluent applicable to simulate velocity distribution under low pressure (~100pa)?||beastieboys||FLUENT||0||March 3, 2010 02:55|
|Initializing the pressure in a region||Manish Mehta||FLUENT||0||July 16, 2006 12:26|
|Multicomponent fluid||Andrea||CFX||2||October 11, 2004 05:12|
|regarding low pressure handling||subodh kumar||Main CFD Forum||1||November 20, 1999 23:23|