CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > SU2

Problems on mesh adaptation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 29, 2013, 11:57
Default Problems on mesh adaptation
  #1
New Member
 
Join Date: Apr 2009
Posts: 6
Rep Power: 8
ervasph is on a distinguished road
I had tried the tutorial 13 for mesh adaptation and found some problems.

1. For feature based adaptation, the results of SU2-v2.0.0 are similar to tutorial, but the results of v2.0.6 are not correct. I guess the reason is that the restart files are different. The "restart_flow.dat" file of v2.0.0 has 12 columns, while v2.0.6 has only 8 columns and includes additional file head. I delete the file head of v2.0.6 and get the correct result.

2. For goal oriented adaptation, the same problem appears. I try to delete the file head of v2.0.6's adjoint restart file, but the results are not still compatible with v2.0.0.

3. Now I use version 2.0.0 to finish goal oriented adaptation. In tutorial, only upper grids at shockwave are refined and the refinement area is large, but in my run, the grids below airfoil are refined too and the range of refinement at shockwave is small.

thanks for any help.
ervasph is offline   Reply With Quote

Old   October 3, 2013, 14:27
Default
  #2
Super Moderator
 
Francisco Palacios
Join Date: Jan 2013
Location: Stanford, CA
Posts: 301
Rep Power: 5
fpalacios is on a distinguished road
Quote:
Originally Posted by ervasph View Post
I had tried the tutorial 13 for mesh adaptation and found some problems.

1. For feature based adaptation, the results of SU2-v2.0.0 are similar to tutorial, but the results of v2.0.6 are not correct. I guess the reason is that the restart files are different. The "restart_flow.dat" file of v2.0.0 has 12 columns, while v2.0.6 has only 8 columns and includes additional file head. I delete the file head of v2.0.6 and get the correct result.

2. For goal oriented adaptation, the same problem appears. I try to delete the file head of v2.0.6's adjoint restart file, but the results are not still compatible with v2.0.0.

3. Now I use version 2.0.0 to finish goal oriented adaptation. In tutorial, only upper grids at shockwave are refined and the refinement area is large, but in my run, the grids below airfoil are refined too and the range of refinement at shockwave is small.

thanks for any help.
Thanks a lot for letting us know, as you have notice we have introduce some changes in the restart formats (mainly because of the new unsteady capability). Please stay tuned for new updates, and fork the latest version of the code https://github.com/su2code. We'll try to fix the problem today or tomorrow.

Best,
Francisco
fpalacios is offline   Reply With Quote

Old   October 11, 2013, 10:04
Default
  #3
New Member
 
Join Date: Apr 2009
Posts: 6
Rep Power: 8
ervasph is on a distinguished road
hello developers,

I had tried on v2.0.8, the featured-based adaptation now work correctly, but the goal-oriented adaptation still has some problems.

The figure 1 is the result of v2.0.0, the figure 2 is the result of v2.0.8. 2.0.0's result looks reasonable, but 2.0.8's result is strange.

thanks for any help
Attached Images
File Type: gif Figure-1.gif (45.7 KB, 9 views)
File Type: gif Figure-2.gif (48.3 KB, 8 views)
ervasph is offline   Reply With Quote

Old   October 12, 2013, 11:34
Default
  #4
New Member
 
Join Date: Apr 2009
Posts: 6
Rep Power: 8
ervasph is on a distinguished road
The problem had been resolved. WRT_RESIDUALS should be set YES for goal oriented adaptation.
ervasph is offline   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
SnappyHexMesh for internal Flow vishwa OpenFOAM Native Meshers: snappyHexMesh and Others 23 August 6, 2014 03:50
Star CCM Overset Mesh Error (Rotating Turbine) thezack CD-adapco 3 December 11, 2013 04:09
rhoPimpleFoam problems martyn88 OpenFOAM 0 September 19, 2012 15:21
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 09:38


All times are GMT -4. The time now is 12:49.