[Gmsh] Mesh smoothing function

[Christophe Geuzaine]

SJ Lai wrote:
> Hello Christophe,
> 
> Thanks for the quick email last time, it really helped me.
> 
> My question this time is about the mesh smoothing function. There might be
> some posts in the archives, but I have not yet been able to find it.
> 
> I was wondering if you can localise the mesh smoothing function over a
> certain block rather than the whole mesh?
> 
> I've attached the geo file for my mesh, and as you can see, around the
> aerofoil is a C Block  which needs to be smooth as possible. But between
> volumes 1,2 and 3, the mesh needs to be as straight as possible. By
> applying the Mesh Smoothing function, I've noticed that the C block gets
> smoothed very well, but between volumes 1 2 and 3, you get sharp points at
> where the mesh connects.
> 
> So could I apply the mesh smoothing only on the C block and not between
> volumes 1,2, and 3 ?

We've added the following command, which should do what you want:

Mesh.Smoothing = 0; // don't smooth anything except...
Smoother Surface{4} = 40; // ...apply 40 smoothing steps on surface 4

This will be in tomorrow's nightly snapshot.



> 
> Thanks very much
> 
> Jake
> 
> 
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine