Airfoil meshing
 

Hi:

I am learning ICEM CFD and one of my first tasks is to generate a C-grid around an airfoil. I am trying to create a nice blocking scheme with an O-grid to capture the geometry with a nice boundary layer around it. However, so far all my attemtps have failed. I always get different kind of problems with the grid.

Could anyone help me and provide me an idea or step-by-step approach to create C-grids with ICEM CFD, please?

I have never done C-grids before. I have experience using gambit, where I usually do circular grids around airfoils. I have already completed all the ICEM tutorials, so I am familiar with the tools in the program.

Thanks

Re: Airfoil meshing
 

Where are you from? contact me. I talk spanish and I can help you out, with a previous airfoil project I worked. Cheers Santiago.

Re: Airfoil meshing
 

I found it also not that easy to do. But this is how I did the blocking of it in the end.

<img src=http://users.cybercity.dk/~ida3068/cfd/C-grid.png>

<img src=http://users.cybercity.dk/~ida3068/cfd/C-grid%20blocks.png>

Dr. Flow Squad

Re: Airfoil meshing
 

This was how we made it:

Blocks: http://i97.photobucket.com/albums/l2...ego/Dibujo.png



Mesh: http://i97.photobucket.com/albums/l2...go/Dibujo2.png

Re: Airfoil meshing
 

That looks OK. Can I see it zoomed in on the airfoil?

Re: Airfoil meshing
 

Ok.

Blocks: http://i97.photobucket.com/albums/l205/sorrego/Di2.png



Mesh: http://i97.photobucket.com/albums/l205/sorrego/di.png Cheers. Santiago.

Nicely done. :D

Hello,

I also try to create a C-Mesh, with a similar strategy, but each time I export the mesh (using CFX4) there is a very tiny gap at the leading edge. When I associated the two vertices ahead of the airfoil to one point (5m away from the leading edge), the exporting failed.
When I overlapped the verticies manually using "move vertex" the gap does not disappear and neither for moving both vertices using the coordinate system.

Do you have any suggestion for me?

hi santiago,

can u show me step by step, blocking mesh scheme?

see u later, regards

Sorry Santiago....
Can you explain step by step how do you create the blocks for the mesh ???

Thx for all...

I FINALLY made a movie to answer this frequently asked question
 

I FINALLY made a "how to" movie to answer this frequently asked question, well three parts actually.

They are on the ANSYS YouTube site...

http://www.youtube.com/ansysinc

I know it is late, but I hope it helps...

Thanks for your perfect job, Simon

Lijun

How can i make similar meshing like this?