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

Onera M6 Wing Mesh

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

Like Tree3Likes
  • 1 Post By cnsidero
  • 1 Post By mAlletto
  • 1 Post By mAlletto

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 18, 2011, 10:59
Default Onera M6 Wing Mesh
  #1
Member
 
Join Date: Oct 2010
Location: Naples
Posts: 50
Rep Power: 12
salvoblack is on a distinguished road
Hi,
I need a very detailed mesh (about 3 million points) of a Onera M6 or any other wing. I have to make calculations of transition.
This is very important because a have a mesh of the Onera M6 with only 300000 points, but the results are no good.
Can someone send it or tell me how to do??
salvoblack is offline   Reply With Quote

Old   March 18, 2011, 22:21
Default
  #2
Senior Member
 
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 417
Rep Power: 18
cnsidero is on a distinguished road
I previously wrote a Fortran program to uniformly subdivide 3D multi-block, formatted PLOT3D files for the purpose of grid dependency studies. (i.e. It places a point between each pair of points therefore multiplying the number of cells in each direction by 2 for a factor of 8 increase of 3D cells). If you grab the PLOT3D file from the Onera M6 study on the NPARC validation site

http://www.grc.nasa.gov/WWW/wind/val...m6wing01.x.fmt

using my program you can refine the mesh. I tested it and it works for this file. The initial mesh has 294,912 cells (306,577 points) and the refined mesh has 2,395,296 cells (2,405,665 points) - pretty close to what you're looking for. And of course you can do it as many times as you want.

As this is a simple subdivision, it will only half the near wall spacing while increasing the cell count by a factor 8. Meaning it's probably not the most efficient way to increase the resolution but you won't need a mesh generator!

To make it work, compile the attached Fortran source file (e.g.)

gfortran -o REFINEPLOT3D -mcmodel=medium refinePlot3D.f

(note: you need the -mcmodel=medium option or it won't compile)

Once its compiled, feed it the PLOT3D file you want to subdivide from stdin (e.g.)

./REFINEPLOT3D < m6wing.x

and it will write out the subdivided PLOT3D file to "refine.x". Finally to get it to work with OpenFOAM you'll have to use the 'plot3DToFoam' converter and then the 'autoPatch' tool to recover the boundary patches.

Oh and this program comes with no warranties or support so if doesn't work for your PLOT3D files read the source and modify it to your liking.

Good Luck! -Chris
Attached Files
File Type: f refinePlot3D.f (12.1 KB, 113 views)
AliE likes this.
cnsidero is offline   Reply With Quote

Old   December 2, 2012, 14:37
Default
  #3
New Member
 
malik
Join Date: Nov 2012
Posts: 19
Rep Power: 10
malik is on a distinguished road
Hi,

can anyone plz send me the geometry of ONERA M6 wing that i can open in ICEM or gambit.
My email address is s.malik.eng@gmail.com

I will really thankful

Regards,
Malik
malik is offline   Reply With Quote

Old   January 23, 2013, 08:09
Default Malik
  #4
New Member
 
malik
Join Date: Nov 2012
Posts: 19
Rep Power: 10
malik is on a distinguished road
Hi,

Does anyone have the 3D mesh of ONERA M6 wing that I can open in ICEM. i need coarse and fine mesh. If anyone has it, can you plz send it on s.malik.eng@gmail.com . i need it urgently

Many thanks in advance
malik is offline   Reply With Quote

Old   April 23, 2020, 07:24
Default
  #5
Senior Member
 
Join Date: Dec 2017
Posts: 152
Rep Power: 5
AliE is on a distinguished road
Hello Guys,

This is a quite old post, but since the M6 test case is an evergreen, I attach here the mesh in OF format (the original one, 300k cells). Two considerations:
- The fortran routine works like a charm (many thanks), but you have to modify it if you want to retrieve the original mesh of 300k cells (justwrite x,y,z instead of Xref, yRef, zRef). If you want the refiened one of about 3M, simply run the fortan program to generate a valid plot3D file as already exaplained.
- The mesh on the NASA website looks to be broken if you attempt to convert in in OF.

Enjoy!
AliE is offline   Reply With Quote

Old   January 13, 2021, 15:30
Default Onera M6
  #6
New Member
 
Tango
Join Date: Jan 2021
Posts: 2
Rep Power: 0
Tangofernandes123890 is on a distinguished road
Hi Everyone,
I was wondering if anyone could please send the 3D geometry for the Onera M6 wing so that I can import it on ICEM as well as the 3D mesh generated for it on ICEM.

This will be really helpful. My email is tangofernandes123890@gmail.com

Thank you!
Tangofernandes123890 is offline   Reply With Quote

Old   January 16, 2021, 09:07
Default
  #7
Senior Member
 
Michael Alletto
Join Date: Jun 2018
Location: Bremen
Posts: 386
Rep Power: 8
mAlletto is on a distinguished road
There is a tutorial in OF which calculates the flow around the onera M6 wing:


https://wiki.openfoam.com/OneraM6_by_Michael_Alletto


the mesh is done however with snappyHexMesh. The results are however ok.
HPE likes this.
mAlletto is offline   Reply With Quote

Old   January 16, 2021, 16:55
Default
  #8
HPE
Senior Member
 
HPE's Avatar
 
Herpes Free Engineer
Join Date: Sep 2019
Location: The Home Under The Ground with the Lost Boys
Posts: 689
Rep Power: 8
HPE is on a distinguished road
Hello Michael,

Thanks a lot for this excellent tutorial!

I wonder whether you have ever tried PIMPLE/PISO on the case (e.g. rhoPimpleFoam)?

If so, what were your impressions about the numerical stability of these solvers?
HPE is offline   Reply With Quote

Old   January 17, 2021, 02:16
Default
  #9
Senior Member
 
Michael Alletto
Join Date: Jun 2018
Location: Bremen
Posts: 386
Rep Power: 8
mAlletto is on a distinguished road
On this I actually never try. But on other cases ( https://wiki.openfoam.com/NACA0012_by_Michael_Alletto and https://wiki.openfoam.com/AMR_supers...ichael_Alletto ) where rhoSimpleFoam did not converge, I used with succhess rhoPimpleFoam with a local Euler scheme to get a steady state solution
HPE likes this.
mAlletto is offline   Reply With Quote

Old   January 17, 2021, 09:34
Default
  #10
HPE
Senior Member
 
HPE's Avatar
 
Herpes Free Engineer
Join Date: Sep 2019
Location: The Home Under The Ground with the Lost Boys
Posts: 689
Rep Power: 8
HPE is on a distinguished road
excellent, thank you!
HPE is offline   Reply With Quote

Old   Today, 12:52
Default Onera m6 icem meshing
  #11
New Member
 
Tango
Join Date: Jan 2021
Posts: 2
Rep Power: 0
Tangofernandes123890 is on a distinguished road
Hi everyone,
I require some help in meshing the Onera m6 wing on Icem , I have done the initial blocking however due to the rounded tip it causes a complication. If anyone has the file for icem meshing or can help meh with the blocking strategy would be really helpful.

thank you
Tangofernandes123890 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
M6 ONERA Wing profile Cyril A. Main CFD Forum 18 December 31, 2016 15:59
3D Hybrid Mesh Errors DarrenC ANSYS Meshing & Geometry 11 August 5, 2013 07:42
mesh missing after export in gambit morteza08 Main CFD Forum 0 July 23, 2010 03:19
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 19:10
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 10:38


All times are GMT -4. The time now is 19:12.