|April 8, 2013, 10:44||
Join Date: Apr 2013
Posts: 4Rep Power: 4
I am attempting to simulate flow over a submnarine at a constant speed.
I am using ANSYS CFX, k omega or SST turbulence model, A structured mesh with icem.
When I have coarse mesh it solves and RMS residual converges however when I have fne mesh RMS residual will not converge and there is fluctuation in RMS.
Can anyone offer some advice from previous expeience?
|April 8, 2013, 18:22||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 11,295Rep Power: 88
Here's plenty of advice: http://www.cfd-online.com/Wiki/Ansys...gence_criteria
Your comments agree with the expected behaviour described in this FAQ.
|Thread||Thread Starter||Forum||Replies||Last Post|
|how to calculate rms velocity fluctuation after runtime||nati||OpenFOAM Post-Processing||6||February 7, 2013 09:42|
|RMS P-mass no-convergence for low pressure ration,low rotor speed turbine||Ton||CFX||3||November 6, 2010 07:21|
|RMS Res. is the smaller the best?||Anderson T F||CFX||10||September 12, 2007 05:59|
|Urgent help: RMS problem!!!||Anh||CFX||4||September 8, 2007 13:47|
|What's wrong with my RMS profile in LES||Jiang Ning||FLUENT||0||March 31, 2005 05:30|