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-   -   Meshing trailing edge of aerofoil (http://www.cfd-online.com/Forums/main/16105-meshing-trailing-edge-aerofoil.html)

CC December 8, 2008 06:43

Meshing trailing edge of aerofoil
 
Hey,

when using the boundary layer tool in Gambit to mesh the near wall region of an aerofoil I experience problems at the trailing edge. The x-direction size of the first cell downstream of the trailing edge appears to be equal to the y-direction cell size along the surface. For y+<5, the latter is very small, i.e. 1e-5, which means that the spacing of the cells in the x-direction downstream of the trailing edge is equally small. This, in turn, renders problems at the interface of the boundary layer and the outer region when using an unstructured mesh - the resolution is poor, skew angles etc.

Does anyone know how to change the configuration, so that the x-direction size of the cells downstream of the trailing edge can be increased (and is not equal to the y-direction size of the cells along the aerofoil surface)?

Many thanks for your comments in advance,

CC

Wifi Lee December 8, 2008 21:06

Re: Meshing trailing edge of aerofoil
 
I can help you!

Can you send your CAD model to me ?

CC December 9, 2008 11:24

Re: Meshing trailing edge of aerofoil
 
Sure - but how do I attach a file?

Email?

Thanks for your help in advance!

Wifi Lee December 9, 2008 18:00

Re: Meshing trailing edge of aerofoil
 
Yes,you can send file attached model through Email

CC December 9, 2008 18:39

Re: Meshing trailing edge of aerofoil
 
Wifi Lee,

thanks for your reply, but I don't see how I can add an attachement here?

Would you be happy to send me your email address, so that I can send you the file? Alternatively, could you explain how I attach the file using the forum's email?

Cheers,

Claudio

pc December 10, 2008 09:57

Re: Meshing trailing edge of aerofoil
 
His bill for providing this service will be in the mail.

CC December 10, 2008 10:06

Re: Meshing trailing edge of aerofoil
 
Sorry, but I hadn't been informed that there'd be a bill. In that case, please just leave it alone.

CC

Wifi Lee December 10, 2008 21:22

Re: Meshing trailing edge of aerofoil
 
Oh,My dear friends.Simple cases is free.



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