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Negative Volume Cells in 2-D Airfoil

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Old   June 2, 2021, 02:53
Default Negative Volume Cells in 2-D Airfoil
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najiee
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I designed an airfoil in Design Modeller by importing coordinates from a .txt file. I was assigned to generate C-topology mesh in Pointwise. I imported my model in Pointwise, created the mesh but when I import it back into FLUENT, I always get the error for Negative Cell Volume.
I have attached an image that shows the inner area of my foil and I think that the problem is right here. The mesh shouldn't be inside the foil. Can someone point me in the right direction?
Thanks in advance.
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Old   June 2, 2021, 13:24
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Quote:
Originally Posted by najiee View Post
I designed an airfoil in Design Modeller by importing coordinates from a .txt file. I was assigned to generate C-topology mesh in Pointwise. I imported my model in Pointwise, created the mesh but when I import it back into FLUENT, I always get the error for Negative Cell Volume.
I have attached an image that shows the inner area of my foil and I think that the problem is right here. The mesh shouldn't be inside the foil. Can someone point me in the right direction?
Thanks in advance.
I strongly suggest you to Google Pointwise tutorial on 2d airfoil mesh.
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Old   June 3, 2021, 19:26
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David Garlisch
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There should not be any mesh "inside" the airfoil. It looks like the domains are folded over on each other. If it is small, ZIP the pw file and attach it here.
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fluent, mesh generation problem, negative cell volume, pointwise, pre processing

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