Turbulent viscosity limited -- CFD Online Discussion Forums

September 7, 2007, 00:32	Turbulent viscosity limited	#1
ashevade Guest Posts: n/a	i know this is very late concerning this thread .... but i just came across it right now. My questions are regarding zxaar's post http://www.cfd-online.com/Forum/flue...9389#Responses He mentions obtaining a solution with a coarse mesh. Could you tell me roughly the mesh size for this coarse mesh assuming that the fine mesh is 3 mil. so that the results are relevant? Secondly, what if the original geometry has a lot of small features to be captured? In that case the problem with a coarse mesh is that we get a lot of skewed elements in that region. So is it alright to use such a mesh with highly skewed elements to get an initial guess and force convergence so that the turbulent viscosity warning goes away. Alternatively if it is not correct to use such a mesh ( which i presume would be the right approach) what approach would one follow to get a coarse mesh? thanx in advance, ashevade

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
"turbulent viscosity limited to viscosity ratio"	olivier	FLUENT	11	October 10, 2015 05:49
reversed flow at pressure inlet and turbulent viscosity is limited....	cfdiscool	FLUENT	10	June 10, 2015 06:15
Turbulent viscosity limited to viscosity...	Cyril	FLUENT	16	October 4, 2007 06:12
Turbulent viscosity limited to viscosity ratio...	Cyril	FLUENT	8	February 7, 2006 20:34
Problem of Turbulent Viscosity Ratio Limited	David Yang	FLUENT	3	June 3, 2002 06:13

All times are GMT -4. The time now is 20:11.