SimpleFoam - ramp up values to achieve convergence -- CFD Online Discussion Forums

July 7, 2016, 10:38	SimpleFoam - ramp up values to achieve convergence	#1
AmRo New Member Amelie Rohlfs Join Date: Jan 2013 Posts: 19 Rep Power: 13	Hello, I have some concerns regarding the procedure when ramping up my values (initial flow velocity, omega for rotating geometry, ...) when having convergence troubles. I want to follow the advice and start with low values and use the converged solution as my initial values for the next simulation. I am using MRFSimpleFoam with RNGkEpsilon. The values for k and epsilon depend on my Reynoldsnumber. (for Re = 180000 I get k = 0,164 and epsilon = 1,778). Will I have to adjust them for every simulation when I start with lower omega values for the rotation (resulting in lower flow speeds and lower Re)? Greetings, Amelie

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
About how to achieve a better convergence for cavitation	lihongyang0	FLUENT	0	March 9, 2016 03:32
SimpleFoam convergence criterion?	phsieh2005	OpenFOAM Running, Solving & CFD	12	March 3, 2015 08:44
crucial settings with respect to fvSchemes and fvSolution to achieve convergence	canopus	OpenFOAM Running, Solving & CFD	0	March 1, 2015 15:31
simplefoam convergence problem	Matt1986	OpenFOAM Running, Solving & CFD	6	October 16, 2012 09:32
SST SimpleFoam Convergence Problems	camoesas	OpenFOAM	23	September 27, 2011 17:27

All times are GMT -4. The time now is 02:42.