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

CFD to FEM

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 10, 1998, 17:10
Default CFD to FEM
  #1
V. Worbington
Guest
 
Posts: n/a
I am trying to convert my CFD pressure data to my FEM model. My FEM model is unstructured using FEMAP/UAI NASTRAN and my CFD package is a lower order panel based code. I would like to know how to accurately put my pressures obtained with my CFD code into my FEM grid? My CFD grid is more course than my FEM grid. Any help would be greatly appreciated!
  Reply With Quote

Old   July 21, 1998, 15:40
Default Re: CFD to FEM
  #2
Vinay Kalro
Guest
 
Posts: n/a
What you need is essentially a projection from your panel mesh (MF) to the structure mesh (MS). I take it you will integrate the pressures on MS to get the nodal forces. There are 2 suggestions I have:

1. When performing the load integrations on MS, project the quadrature points from MS onto MF, then interpolate the values at projected points using conventional finite element shape functions (corresponding to elements/panels of MF).

2. Solve a least squares problem to obtain nodal pressures on MS. This will again require projections similar in nature to step 1.

Hope this helps.
  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
mapping CFD to FEM ? aerobanakar ANSYS 6 May 1, 2012 23:18
Where to find comparisons of CFD FEM codes J.T. NUMECA 4 July 10, 2003 17:07
Where to find comparisons of CFD FEM codes Jen FLUENT 0 March 6, 2003 22:32
ASME CFD Symposium Chris Kleijn Main CFD Forum 0 August 22, 2001 06:41
CFD Salary CFD Main CFD Forum 15 September 4, 1999 14:04


All times are GMT -4. The time now is 14:47.