[Gmsh] Prism-Layer in 2D

[David Colignon]

On 14/01/10 11:58, Bernhard Stoevesandt wrote:
> Hi,
>
> well, did i miss any answers? so far i'm still stuck on this problem.
> maybe i send the request at a bad date ...


Hi Bernhard,

yes, it must be the date, sorry for the delay.

The short answer is that the extrusion along normals does only work in 3D (extrusion of a surface to create a volume) 
and has not been implemented in 2D. (We needed only the 3D , lack of time, it's not that simple in 2D because we don't 
have the normals, ...).

In 2D, I suggest you to use Transfinite Surfaces.

http://www.geuz.org/gmsh/doc/texinfo/gmsh.html#t6_002egeo

Regards,

Dave

-- 
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
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>
> Bernhard Stoevesandt
>
> Bernhard Stoevesandt wrote:
>> Hello all,
>>
>> well, here is again the old problem, but somehow i don't get it. I'm
>> trying to somehow create a quadrilateral layer on the surface in the
>> attached file. It is not ideal yet, but at least to get to that layer
>> would be nice.
>> I tried the method described in
>> http://www.cfd-online.com/Forums/openfoam-meshing-gmsh/61876-default-faces-boundary-layer.html
>> (as mentioned in http://www.geuz.org/pipermail/gmsh/2009/004551.html) in
>> the file. But somehow i just get a 3D extrusion instead of a 2D extrusion
>> normal to the surfaces.
>> The compound line and surface method from
>> http://www.geuz.org/pipermail/gmsh/2009/005068.html crashes with my gmsh
>> version (2.3.1).
>> Now what? Is it somehow possible to create a quadrilateral layer on the
>> surface?
>>
>> Bernhard Stoevesandt
>>
>> -------------------------------------------------------
>> Bernhard Stoevesandt
>> AG TWiST + ForWind Oldenburg
>>
>> Carl-von-Ossietzky Str. 9
>> Carl-von-Ossietzky Universität Oldenburg
>> 26129 Oldenburg
>> Tel.: ++ 49 (0) 441 798 3577 Fax: ++49 (0) 441 798 3579
>> -------------------------------------------------------
>
>