[Gmsh] 3D element size

[David Colignon]

Hi,

which meshing algorithm do you use ? For me, with the defaults parameters (isotropic for 2D and 3D, no optimization), the 3D mesh looks good ...

If you want to control more accurately the 3D mesh, you should try to use transfinite mesh ( see tutorial/t6.geo )

Cheers,

Dave

-- 
David Colignon, Ph.D.
ELAP - Service d'Electricité Appliquée
Institut Montefiore B28
Université de Liège
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Dries Kimpe wrote:
>   Hi,
> 
> I'm experimenting with gmsh, and in 2D everything works great.
> The 2D mesh is a square plane, in which the bottom line needs to
> have fine elements, while the top of the plane needs coarse elements.
> In between the elements should go gradually from fine to coarse.
> 
> For 2D meshes, this works. However, I cannot reproduce this in 3D.
> The elements on the inside (in the volume) do not exhibit a gradual increase from
> fine to coarse. Did anybody succeed in accurately controlling element density in 3D meshes?
> 
> The attached picture shows my problem.
> I would like to have a more gradual increase in element size... How can I do this?
> 
>   Greetings,
>   Dries Kimpe