CFD Online Logo CFD Online URL
Home > Forums > General Forums > Main CFD Forum

area weighted mass fraction-different results for different grid types

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

LinkBack Thread Tools Display Modes
Old   February 13, 2011, 12:43
Default area weighted mass fraction-different results for different grid types
Senior Member
Join Date: Feb 2011
Posts: 140
Rep Power: 9
Lilly is on a distinguished road
I have got a problem with the type of grid I am using for my simulations. It would be really nice, if one of you could help me!
If I am using a structured hexahedral volume mesh my results differ a lot from the results for the case that I am using an unstructured tetrahedral volume mesh. The parameter I am interested in is the area weighted mass fraction of contrast agent in blood. I already tried using grids with a different number of elements (from about 50.000 up to a few million elements) for both cases. The results are converging in each case, but the results differ about two orders of magnitude comparing both grid types! Do you have any idea how I can fix this problem?
Thanks a million,
Lilly is offline   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
Error message: Insufficient Catalogue Size Paresh Jain CFX 31 June 7, 2016 21:31
air bubble is disappear increasing time using vof xujjun CFX 9 June 9, 2009 07:59
On grid independent solution for pulsatile flow David FLUENT 4 June 8, 2005 16:20
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59
Grid Independent Solution Chuck Leakeas Main CFD Forum 2 May 26, 2000 11:18

All times are GMT -4. The time now is 18:38.