CFD Online Logo CFD Online URL
Home > Forums > FLUENT

high difference between cell and nodal values

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

LinkBack Thread Tools Display Modes
Old   November 12, 2003, 01:21
Default high difference between cell and nodal values
Posts: n/a
Recently i have completed a thermal analysis. while looking at the results, i found that there is huge difference in the results between the nodal and cell values of temperatures(around 40 degrees). What could be the mistake?. Is it the problem with the grid such as aspect ratio or skewness or something? Can anyone help me?? Thanks in advance Trilok
  Reply With Quote

Old   November 12, 2003, 19:57
Default Re: high difference between cell and nodal values
Ajay Rao
Posts: n/a
Hi Trilok , Have you checked for grid convergence ? ( running the analysis for a finer mesh ) Have you checked for the total heat flux flowing in and out ? Let us know , what was wrong when you figure it out . Regards, Ajay
  Reply With Quote

Old   November 13, 2003, 04:38
Default Re: high difference between cell and nodal values
Posts: n/a
This is a very very complex domain. so mesh check is not that much easy...i am sure that this problem can be overcome by with a finer mesh. For a similar kind of problem and with same mesh size i used to get a very less difference between nodal and cell values.This problem has occured with the current model only.coming to heat flux, mine is a radiation problem and it interacts with surrounding air not possible to check heat flux... Thankyou for your help
  Reply With Quote


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
Cell Reynolds Number laliong Main CFD Forum 11 March 19, 2015 12:42
Cell centered vs Nodal Data from Fluent prikeyma FLUENT 0 September 1, 2010 11:40
Ensight - node values -cell values leo FLUENT 1 May 12, 2010 08:47
strange node values @ solid/fluid interface - help JB FLUENT 2 November 1, 2008 13:04
nodal temperature values Mcgregor FLUENT 0 May 5, 2003 08:19

All times are GMT -4. The time now is 12:48.