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

grid independence

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 26, 2007, 18:55
Default grid independence
  #1
dibya
Guest
 
Posts: n/a
how to know grid independence in any problem , is it necessry to find out

  Reply With Quote

Old   April 27, 2007, 05:50
Default Re: grid independence
  #2
gopal
Guest
 
Posts: n/a
it is not necessary to find out grid independence, but for supplying the time step size or the courant number, and for some turbulence parameters, knowledge of the grid dependence is necessary.
  Reply With Quote

Old   April 27, 2007, 10:16
Default Re: grid independence
  #3
myron
Guest
 
Posts: n/a
If you want to know how well you are capturing the physics - then grid independence is a definite must. (If you double the mesh count - and your answer changes by more than a few percent - then you know your original mesh was probably not causing any flow characteristics. If the answer changes by more than that - then you know the mesh itself was influencing the flow results.)
  Reply With Quote

Reply


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
grid independence questions lucifer FLUENT 0 December 14, 2009 20:59
unstructured mesh grid independence for Fluent Shane Schouten FLUENT 0 October 11, 2006 17:50
Grid independence check Mattis Voss FLUENT 1 November 23, 2005 11:30
Grid Independence problem for simple pipe geometry chanchala FLUENT 13 November 20, 2003 09:24
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 06:59


All times are GMT -4. The time now is 15:55.