[Gmsh] How to make a rotationally periodic 3D mesh

[Zuheyr Alsalihi]

Hello,

I just needed to better explain my previous question:

I need to make a triangular cake slice shaped 3d solid mesh using gmsh 
3.0.6 where the 2nd side is the rotational periodic surface of the first 
side surface of the mesh. The rotation angle is 2*Pi/N where N is the 
number of slices.

To make it visually clear, if N=1, left periodic surface would be close 
on itself and the rotation angle would be 2*Pi.

The geometry is imported through a step file and all I have to force is 
to make gmsh generate a rotationally periodic mesh on the periodic 
surfaces.

I just cannot succeed to find the correct syntax to the statement

//Periodic Surface { expression-list } = { expression-list } Rotate { 
expression-list } ;

To tell gmsh that gthe mesh on the left periodic surface, master, is 
going to be rotated by an angle 2*Pi/N to make the mesh on the other 
slave periodic surface.

I must have some conceptual problem. Thank you for reading.

Best regards.


-- 
Dr. Zuheyr Alsalihi
Senior Research Engineer
Turbomachinery and Propulsion and
Aeronautics and Aerospace Departments
von Karman Institute for Fluid Dynamics
Waterloosesteenweg 72, B-1640 Sint-Genesius-Rode, Belgium
Direct Line: +32 (0)2 359 98 65
Fax: +32 (0)2 359 96 00
E-mail: alsalihi at vki.ac.be
http://www.vki.ac.be