CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

viscosity limited

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   August 13, 2007, 03:28
Default viscosity limited
  #1
rick
Guest
 
Posts: n/a
Hi i face whit 2meessages"turbulent viscosity limited to .." and reveres floe at ...on out flow" during solving a turbulant problem. i modeled 2 channel that cross eachother. i increase pressure under relaxation factor to 0.5 but i have convergnce problem whit qauntinuty equation. please help me. Whit king regards Rick
  Reply With Quote

Old   August 13, 2007, 04:40
Default Re: viscosity limited
  #2
Farhan
Guest
 
Posts: n/a
There are 3 reasons for this message: first the mesh quality is poor(skewness etc), second improper use of turbulent boundary conditions and the third one is the poor initial values for turbulent quantities, check for these things.
  Reply With Quote

Old   August 15, 2007, 04:14
Default Re: viscosity limited
  #3
rick
Guest
 
Posts: n/a
Dear Farhan my grid dosnt havy any problem . and what do you meam about use of turbulent boundary conditions? tankx alot Rick
  Reply With Quote

Old   August 15, 2007, 23:37
Default Re: viscosity limited
  #4
Andrew
Guest
 
Posts: n/a
It is turbulent intensity and length scale at the inlet boundary
  Reply With Quote

Old   August 22, 2007, 05:23
Default Re: viscosity limited
  #5
farhan
Guest
 
Posts: n/a
yes, I think you have got the answer from Andrew
  Reply With Quote

Reply

Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
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
Turbulence viscosity limited Madhukar Rapaka FLUENT 0 June 26, 2006 03:17
Turbulent viscosity limited to viscosity ratio... Cyril FLUENT 8 February 7, 2006 21:34
Problem of Turbulent Viscosity Ratio Limited David Yang FLUENT 3 June 3, 2002 06:13


All times are GMT -4. The time now is 09:56.