CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

No difference on the results with many shemes

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 17, 2017, 15:38
Default No difference on the results with many shemes
  #1
Member
 
Paul Palladium
Join Date: Jan 2016
Posts: 90
Rep Power: 7
Fauster is on a distinguished road
Hello everyone,

I am working on a case very similar to the pitzDaily tutorial (simpleFoam) with a very fine mesh and I observe no difference on the results with first order scheme (Gauss upwind) and many second order schemes like linearUpwind, linear, QUICK etc...

I change also my grad schemes from linear to leastSquare and fourth and I observe also no significant change (less than 0.5%) on my results.

Is it possible that with a very fine mesh all the schemes give almost the same results (less than 0.5% difference) ? Am I observing something usual or am I missing something ?

I precise that I am using the results obtained with the simplest schemes (grad : Gauss linear, div : Gauss upwind) to initialize the others calculations.

Thanks a lot for your help.

Fauster is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Problem: Very long "write" time (~2h-3h) for results and transient results Shawn_A CFX 16 April 12, 2016 21:49
Difference in the results between OF 2.3.0 and OF 2.4.0 simpleFoam Olgierd OpenFOAM Running, Solving & CFD 0 July 27, 2015 12:23
NACA 0012 (3D) strange results? aleix.de.toro FLUENT 0 December 19, 2014 12:39
Difference in results using outlet and opening boundary conditions akash_max CFX 9 January 25, 2012 03:16
difference in results... mateus FLUENT 0 May 21, 2008 01:50


All times are GMT -4. The time now is 13:59.