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Old   June 26, 2009, 12:23
Default Boundary Layer
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I have a 3D body in a rectangular domain. This body is a body of a racing car and one of the questions I ask myself is, is it necessary to apply a boundary layer to the body? If yes, should I apply the boundary layer on all body surfaces?

I was looking at one tutorial where they import the IGES file of the car body and in that tutorial, I am surprised to find out that they didnt apply the boundary layer. So can anyone advise me if it is necessary to apply the boundary layer? Thanks
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Old   June 29, 2009, 08:10
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Look here

It depends on you y+, so if they don't create a boundary layer in the tutorial the y+ is probably above 30.

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