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-   -   Boundary layers in pipes 3D (https://www.cfd-online.com/Forums/ansys-meshing/87728-boundary-layers-pipes-3d.html)

vas84 April 27, 2011 17:19
Boundary layers in pipes 3D
 
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?

vmlxb6 May 1, 2011 16:51
Quote:
Originally Posted by vas84 (Post 305338)
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.

-mAx- May 2, 2011 03:20
in 2D select edges for attaching your BL.
in 3D select surfaces...


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