[Gmsh] Can't extrude a plane with a free internal boundary for a 2D external flow simulation.

[Eliam]

Hi everybody

I would like to simulate the flow over a plate whithout thickness. I 
made a plane and a line. I put the line in the surface (Line{} In 
Surface{}) and try to extrude the result.
I get the message :
"Error   : Could not find extruded vertex (-0.7619236277073083, 
0.3788912274202315, 0.1) in surface 36"
The 3D mesh is good but the volume near the plate.
The .geo is attached.

Any help is welcome. Thank you.

Eliam HERiCHON
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