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Boundary layers in pipes 3D

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Old   April 27, 2011, 17:19
Default Boundary layers in pipes 3D
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Hello,
I am new to CFD, I work with gambit 2.4.6 and Fluent 6.3.26 and my experience are the tutorials from Cornell and built-in documentation of the software.

I have created some simple cases of flows in tubes. I want to create boundary layers at the walls of the pipes so that I can check the turbulent flows in them. In 2D I can create boundary layer as shown in the tutorials but in the 3D cases it is not possible. Can somebody give me some instructions in doing so?
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Old   May 1, 2011, 16:51
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Quote:
Originally Posted by vas84 View Post
Hello,
In 2D I can create boundary layer as shown in the tutorials but in the 3D cases it is not possible.
Why is it not possible ???? If its a simple pipe without any bends go for an O-grid structured mesh. The simplest and the best.
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Old   May 2, 2011, 03:20
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in 2D select edges for attaching your BL.
in 3D select surfaces...
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