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Generating elliptic grid around NACA SC2-0714 airfoil

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Old   November 3, 2015, 07:50
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Originally Posted by naffrancois View Post
Here are some pictures of results of applying different approaches I did some time ago:
- Laplace
- Laplace + forcing functions
- Hyperbolic

As you see, the TFI and Laplace without forcing terms give a poor quality grid. The reason is that they do not have any mechanism to enforce orthogonality and much control on the interior grid spacing. With forcing functions you can force the grid to some extend

I think I took as a reference the source codes coming with the book of Blazek:

- Computational fluids dynamics: principles and applications

Attachment 40546

Attachment 40547

Attachment 40548

Attachment 40549
Hi I too am generating elliptic O grid on symmetric airfoil using same method. But as I increase the no of iterations I am getting errors as shown in the image. I have generated initial points using TFI. Can anyone please guide me furthur.
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