[MadsR]

Hi.

I've created a small program (for Linux of course) which generates a blockMeshDict file for an O-mesh around a given airfoil. I've just released a preliminary beta version (found here).

It probably needs more debugging, but it works for the simple NACA profile I've tested it with so far (also provided with the link above). I have only tried few profiles with blunt-trailing-edges. I am not sure if it works for infinitely thin trailing edges (i.e. a point).

Todo's include more control over the final mesh (but one can finetune directly in the produced blockMeshDict of course).

Please let me know if you have any comments or if it doesn't work at all.

Cheers,
Mads

[georg]

Hi Mads,

i was also working on a mesh generator for NACA or comparable airfoil geometries. I was not able to use your program. Could you please post an image or send it to my adress at the bottom?

I tried the c-shape approach with several boundary layers before morphing the mesh towards an rectangle. If you want to, i can send you some images. Maybe we can share some experience?

boba_f AT gmx DOT de

Best regards,
georg

[ivan_cozza]

Originally Posted by MadsR

Hi.

I've created a small program (for Linux of course) which generates a blockMeshDict file for an O-mesh around a given airfoil. I've just released a preliminary beta version (found here).

It probably needs more debugging, but it works for the simple NACA profile I've tested it with so far (also provided with the link above). I have only tried few profiles with blunt-trailing-edges. I am not sure if it works for infinitely thin trailing edges (i.e. a point).

Todo's include more control over the final mesh (but one can finetune directly in the produced blockMeshDict of course).

Please let me know if you have any comments or if it doesn't work at all.

Cheers,
Mads

Hi MadsR,
I would like to test your code, but I work on 64-bit machines, so its possible to have the sources to recompile it?
Thanks, Ivan!

[georg]

Originally Posted by ivan_cozza

Hi MadsR,
I would like to test your code, but I work on 64-bit machines, so its possible to have the sources to recompile it?
Thanks, Ivan!

Hello Ivan,

do you have a certain airfoil geometry you want to mesh?
If you send me the coordinate list of your profile, i can build a mesh with my tool and send it back to you.

Regards,
georg

boba_f AT gmx DOT de

[ivan_cozza]

Hi Georg,
do you need the points in any particular order?
For istance, suction side and pressure side in different lists, or points oriented starting from trailing edge, then going up to the leading edge on the suction side, then going back on the pressure side, or something like this? Give me those infos and I send you the stuff!
Thanks, Ivan

Originally Posted by georg

Hello Ivan,

do you have a certain airfoil geometry you want to mesh?
If you send me the coordinate list of your profile, i can build a mesh with my tool and send it back to you.

Regards,
georg

boba_f AT gmx DOT de

[georg]

Hi Ivan,
perfect would be a list of points as you mentioned:

Originally Posted by ivan_cozza

... points oriented starting from trailing edge, then going up to the leading edge on the suction side, then going back on the pressure side ...

Regards,
Georg

[MadsR]

Hi.
Thanks for the feedback - I've been away for the holidays. Happy new year!

@georg: Do you get an error, or what is the problem more precisely?
@ivan: The program should be able to run on a 32-bit system, or? :-)

/Mads

[draufunddran]

hallo,

the link above isn't working anymore, but i'm very interested in your little programm.

can you send me the binary and maybe the source? I will send you my email in PM...

greetings,

draufunddran

[MadsR]

Hi

The link is http://hvirvel.dk/airfoilmesher.

/Mads

[sibo]

Originally Posted by MadsR

Hi

The link is http://hvirvel.dk/airfoilmesher.

/Mads

Hi Mads,

Firstly, thanks for the mesh you provided on CFD-online. I'm just wondering when we submit the airfoil coordinates, which format should we use?
Because I tried .dat, .txt and .rtf, they don't work.

Thanks a lot for the help!
Sincerely
Sibo

[MadsR]

Hi. Thanks for your interest in the airfoil mesher. Man, this is an old page, but still used. Happy to help (or make a disaster of your simulation - sorry).

The extension has no influence. File format has to be text (ASCII) other than that just dump the coordinates in the file, as mentioned on the page.

Let me know if you are able to use the meshes at all. I think I seriously need to make this tool better.

Mads