[Gmsh] mesh generation around a circle

[divyaprakash poddar]

Hi,

Is it possible to generate a mesh as shown in attachment1 using gmsh. All I
have managed to create is shown in attachment2. I know that for patch mesh
the geometry should be divided in to regions containing 4 boundaries. But I
am not able to think of a way to apply this so that I achieve the same
result as in attach1.

Can you please provide some insight in this.

The reason I need a mesh similar to the one shown in 1 is because the
bottom boundary of the mesh changes in the simulation which I am running
and causes the cells to become highly skewed. I don't think this problem
will be present with the mesh structure of attach1.
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