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

Moving mesh and GEOMETRIC CONSERVATION LAW

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 22, 2013, 21:14
Default Moving mesh and GEOMETRIC CONSERVATION LAW
  #1
Member
 
Jianming Liu
Join Date: Mar 2009
Location: China
Posts: 71
Rep Power: 17
liujmljm is on a distinguished road
Dear developer,
In the SU2 code for the moving mesh, is there GEOMETRIC CONSERVATION LAW used to do the simulation with the moving mesh? In the source code, I can not find the subroutines on this topic?

In addition in the previous version of the SU2, I found that the source code has the TORSIONAL_SPRING and ALGEBRAIC method for the deformation of the volumetric grid. But from v2.0.5, the TORSIONAL_SPRING and ALGEBRAIC method have been deleted. Could you please tell me if there are some reconsideration for those abilities or others for viscous flow with large amplitude flutter or aeroelasticity on RANS equations.

Thank you!

Last edited by liujmljm; September 23, 2013 at 13:43.
liujmljm is offline   Reply With Quote

Old   October 3, 2013, 02:30
Default
  #2
Super Moderator
 
Thomas D. Economon
Join Date: Jan 2013
Location: Stanford, CA
Posts: 271
Rep Power: 14
economon is on a distinguished road
Quote:
Originally Posted by liujmljm View Post
In the SU2 code for the moving mesh, is there GEOMETRIC CONSERVATION LAW used to do the simulation with the moving mesh? In the source code, I can not find the subroutines on this topic?

At the moment, GCL has not yet been implemented for the deforming mesh option, but this feature will be added in the near future as we update things for the V3.0 release. In fact, many improvements to the dynamic mesh capabilities are under development in the code, and they should be available for V3.0.


Quote:
Originally Posted by liujmljm View Post
In addition in the previous version of the SU2, I found that the source code has the TORSIONAL_SPRING and ALGEBRAIC method for the deformation of the volumetric grid. But from v2.0.5, the TORSIONAL_SPRING and ALGEBRAIC method have been deleted. Could you please tell me if there are some reconsideration for those abilities or others for viscous flow with large amplitude flutter or aeroelasticity on RANS equations.

We have removed the TORSIONAL_SPRING and ALGEBRAIC options in favor of a new, much more robust, technique based on the linear elasticity equations. We have used it successfully for RANS shape design problems as well as some preliminary deforming mesh simulations. You can select this mesh deformation method with the FEA option for the GRID_DEFORM_METHOD.

All the best,
Tom
economon is offline   Reply With Quote

Old   November 19, 2013, 18:43
Default
  #3
Super Moderator
 
Thomas D. Economon
Join Date: Jan 2013
Location: Stanford, CA
Posts: 271
Rep Power: 14
economon is on a distinguished road
Hi Jianming,

Just to follow up on this topic too: we have made more progress in simulating (and designing in) unsteady flows on dynamic grids, including the addition of a GCL. Please see the routine CEulerSolver::SetResidual_DualTime(CGeometry *geometry, CSolver **solver_container, CConfig *config, unsigned short iRKStep, unsigned short iMesh, unsigned short RunTime_EqSystem) in the file solver_direct_mean.cpp to find more details on the GCL implementation.

Cheers,
Tom
economon is offline   Reply With Quote

Old   November 20, 2013, 07:47
Smile
  #4
Member
 
Jianming Liu
Join Date: Mar 2009
Location: China
Posts: 71
Rep Power: 17
liujmljm is on a distinguished road
Dear Tom, thank you. It is a very great news for me. Thank you for your great jobs.

Jianming
liujmljm 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
[snappyHexMesh] snapEdge - failure Tobi OpenFOAM Meshing & Mesh Conversion 33 March 18, 2014 04:58
geometric conservation law(GCL) in OpenFOAM Ya_Squall2010 OpenFOAM Running, Solving & CFD 1 May 14, 2013 06:31
Geometric boundary splitting on PLOT3D mesh cap_hook FLUENT 2 May 25, 2009 10:45
How to update polyPatchbs localPoints liu OpenFOAM Running, Solving & CFD 6 December 30, 2005 18:27
Geometric Conservation Law (GCL) James Main CFD Forum 1 October 26, 2000 07:40


All times are GMT -4. The time now is 19:41.