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O-grid or Polar-grid for airfoil mesh

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Old   March 30, 2011, 03:43
Default O-grid or Polar-grid for airfoil mesh
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Felipe
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Hi,

I want to simulate the flow around an airfoil, and I want to mesh the domain in an o-grid (or polar grid), in order to conveniently simulate the flow for different angles of attack.

My problem is mostly at the trailing edge, where I get the cells very skewed.

I want to mesh the trailing edge like in the screenshot.

Does anyone have ideas/suggestions on how to implement such mesh with blockMesh/gmsh or any other open source mesh generator?

Cheers

image002.jpg

image006.jpg

image008.jpg

Last edited by fippo_dk; March 30, 2011 at 04:08.
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Old   March 31, 2011, 06:57
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Niels Nielsen
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Hello

Certainly doable using Salome.

With a bit of clever thinking you can make a python script that takes XFoil profiles and makes a macro for Salome.

The end result will look something like the following.
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File Type: jpg salome-naca0012.jpg (96.5 KB, 134 views)
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Old   March 31, 2011, 07:30
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Could you post a screenshot of the far domain? is it a circular or square domain?

What about the trailing edge? is it blunt or sharp?

Mvh

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Old   March 31, 2011, 07:32
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Hi its a circular domain and the trailing edge is blunt.
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