|
[Sponsors] |
Configuration files for complete 3D aircraft simulations |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
April 18, 2014, 07:36 |
Configuration files for complete 3D aircraft simulations
|
#1 |
New Member
Join Date: Feb 2014
Posts: 11
Rep Power: 12 |
Dear all,
As an unexperienced CFDer. i am setting up a configuration file and am having troubles with some parameters. As a start, i would want to ask which numerical method can be used best. In my case, i would want to calculate an Euler flow over an aircraft which is meshed with tetrahedrals (Tetgen mesh generator). Should i use the Green Gauss method or the Weighted Least Sqaures method as a numerical method to compute spatial gradients? What are the main reasons to choose between these two methods? My initial choice would be Green Gauss due to the surface curvatures that are present. These cause difficulties for WLS methods according to a paper i read. http://www.ewp.rpi.edu/hartford/~ern...aa20033986.pdf Thanks in advance! |
|
April 18, 2014, 10:41 |
|
#2 |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
For Euler simulations, Green Gauss works great. If you have a hybrid grid with boundary layer (NS simulations) then WLS is a better choice.
Thanks for using SU2, Francisco |
|
April 18, 2014, 12:53 |
|
#3 |
New Member
Join Date: Feb 2014
Posts: 11
Rep Power: 12 |
Thanks for your quick reply!
I saw in the testcases that the DLRF6 aircraft configuration indeed had a Green-Gauss method for an Euler flow but the OneraM6 wing tutorial used weighted-least-squares for an Euler flow. Does this have to do with the fact that the OneraM6 testcase uses multigrid or is there another reason why the weighted-least-squares was used? |
|
April 20, 2014, 20:15 |
|
#4 |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
Not really, we just wanted to test most of the combinations.
Thanks for your interest in SU2, Cheers, Francisco |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Hardware selection for steady/unsteady incompressible, turbulent and cht simulations | maddalena | OpenFOAM | 2 | July 13, 2011 09:55 |
Monitor Files Missing | Forrest | FLUENT | 3 | March 24, 2009 17:11 |
[OpenFOAM] Reuse state for different simulations reread input files | axl | ParaView | 2 | July 11, 2008 13:05 |
Problems with result files | Kasper | CFX | 5 | December 14, 2006 03:41 |
Results saving in CFD | hawk | Main CFD Forum | 16 | July 21, 2005 21:51 |