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

Onera M6 wing

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 7, 2002, 01:18
Default Onera M6 wing
  #1
sheetal
Guest
 
Posts: n/a
Dear All,

Has anybody solved the Onera M6 wing problem mentioned on site

http://www.grc.nasa.gov/WWW/wind/val...ng/m6wing.html

I have solved this in CFX Tascflow but the results are not matching with the experimental data given on the site. Please share your experiences.

regards, sheetal

  Reply With Quote

Old   November 7, 2002, 07:32
Default Re: Onera M6 wing
  #2
Li Yang
Guest
 
Posts: n/a
The exerimental data should be correct. You can check the data in the original report: AGARD-AR-138.

Regards

Li
  Reply With Quote

Old   November 7, 2002, 08:47
Default Re: Onera M6 wing
  #3
Praveen
Guest
 
Posts: n/a
This is a very gentlemanly problem which every beginner of aerospace cfd solves. Mybe you should give details of your grid and flow solver, and tell us how the results differ from experiments ?
  Reply With Quote

Old   November 8, 2002, 08:05
Default Re: Onera M6 wing
  #4
sheetal
Guest
 
Posts: n/a
Hi!

The grid size is approx. 0.75 million. I solved the problem using k-w as well as k-e model (CFX TASCflow). I tried UD as well as modified linear profile schemes. But all the results are more or less same. The exp data shows that there is shock formation at approx middle of the suction side of the wing. But my analysis shows that the shock is blown off from the surface. Means the results are like analysis done for lower angle of incidence or higher Mach number with respect to the experiment. The pressure coefficients plots are not matching especially on suction (top) side.

I am going through AGARD. Thanks

Sheetal
  Reply With Quote

Old   November 10, 2002, 13:34
Default Re: Onera M6 wing
  #5
boling
Guest
 
Posts: n/a
How about your grid distribution in the direction normal to the wall? Accoring to my experience, if there were not enough grids in boundary layer , you could not get the correct solution if you are using k-w model.
  Reply With Quote

Old   November 11, 2002, 01:15
Default Re: Onera M6 wing
  #6
Sheetal
Guest
 
Posts: n/a
I have already checked the grid distribution near the boundary. It is ok. I used structured mesh generated in ICEM Hexa. Has anybody solved the problem and got the correct result? The experimental results should be correct. Code may not be simulating correctly. On the same site they have mentioned the simulation done with WIND code and got the matching results.

Thanks,

Sheetal
  Reply With Quote

Old   November 11, 2002, 13:01
Default Re: Onera M6 wing
  #7
boling
Guest
 
Posts: n/a
could you try to solve the problem using the grid from that webpage ? I used to solve that using the grid from the webpage, it worked well.
  Reply With Quote

Old   November 12, 2002, 00:52
Default Re: Onera M6 wing
  #8
sheetal
Guest
 
Posts: n/a
Thanks boling!

I will do that.

Sheetal
  Reply With Quote

Old   November 12, 2002, 15:33
Default Re: Onera M6 wing
  #9
Neale
Guest
 
Posts: n/a
What do you mean by the grid distribution is OK at the boundary. How many control volumes do you have in the boundary layer?

You should probably be using SST with the automatic wall funciton treatment for this case, rather than k-omega or k-epsilon. Make sure you have at least 5-6 control volumes in your boundary layer with SST.

Neale.
  Reply With Quote

Old   May 28, 2009, 12:30
Default
  #10
New Member
 
Subramanya Naik
Join Date: May 2009
Posts: 3
Rep Power: 17
Subramanya_Naik is on a distinguished road
Hi. Can anybody please forward me experimental data for Onera M6 wing. I am new to this . Can you help me? my mail id is ansubramanya@gmail.com

Last edited by Subramanya_Naik; May 30, 2009 at 05:14.
Subramanya_Naik 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
Onera M6 Wing Mesh salvoblack OpenFOAM 10 January 23, 2021 12:52
M6 ONERA Wing profile Cyril A. Main CFD Forum 18 December 31, 2016 15:59
Set ONERA M6 Wing Initial Condition Dianhong Main CFD Forum 1 January 20, 2016 06:19
Trouble when using MUSCL scheme on ONERA M6 wing Aurélien FLUENT 2 January 23, 2013 08:42
Onera Wing Wall function? Dianhong Main CFD Forum 0 November 21, 2003 21:19


All times are GMT -4. The time now is 21:00.