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

FFD module for geometry deformation

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 2, 2013, 14:43
Default FFD module for geometry deformation
  #1
New Member
 
Robin Dufour
Join Date: Aug 2013
Posts: 1
Rep Power: 0
RobinDufour is on a distinguished road
Hello,

I have questions concerning the FFD module.
I have been trying to modify my geometry (plane-like) using FFD boxes in order to enrich my aerodatabase.
For instance: elevons sweep, rudder sweep, etc...
It works very well when I move one box at a time. However, whenever I want to have two deformations at the same time, things go wrong. It seems that the movement of one box influences the movement of the other box. This appends even the boxes are not "parented" as defined in the .su2 file. Please note that the boxes are on the same "CHUNK_LEVEL".

Could you please give me a little documentation on how FFD boxes have to be configured in the .su2 file?
In particular : - how does the parent/children relationship works
- what is defined by the "CHUNK_LEVEL" parameter

Thanks!

Robin
RobinDufour is offline   Reply With Quote

Old   August 19, 2013, 13:26
Default
  #2
Super Moderator
 
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15
fpalacios is on a distinguished road
Could you please attach the definition of the FFD boxes that you are using?

Cheers,
Francisco


Quote:
Originally Posted by RobinDufour View Post
Hello,

I have questions concerning the FFD module.
I have been trying to modify my geometry (plane-like) using FFD boxes in order to enrich my aerodatabase.
For instance: elevons sweep, rudder sweep, etc...
It works very well when I move one box at a time. However, whenever I want to have two deformations at the same time, things go wrong. It seems that the movement of one box influences the movement of the other box. This appends even the boxes are not "parented" as defined in the .su2 file. Please note that the boxes are on the same "CHUNK_LEVEL".

Could you please give me a little documentation on how FFD boxes have to be configured in the .su2 file?
In particular : - how does the parent/children relationship works
- what is defined by the "CHUNK_LEVEL" parameter

Thanks!

Robin
fpalacios is offline   Reply With Quote

Reply


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
how to define a shape deformation using the grid deformation variables (FSI problem) momo_sjx SU2 Shape Design 6 June 7, 2015 23:29
Grid deformation for high aspect ratio grids praveen SU2 Shape Design 5 February 15, 2013 20:50
CFX interpolating to a mesh with deformation martindg CFX 5 October 17, 2012 06:52
Can someone PLEASE document the development version installation bernd OpenFOAM Installation 76 November 14, 2008 22:51
Lamboot trouble r2d2 OpenFOAM Installation 4 October 17, 2005 05:27


All times are GMT -4. The time now is 11:38.