[Gmsh] GMSH - Inicial step in mesh generation and point creation

[Ricardo Canelas]

Thanks.

In fact, i came across this paper just 10min after writing to the list, and
i wasn't even looking for anything. I'm terribly sorry, but i just missed it
in the middle of everything else.

Thank you so much for the fast answer again David,
best regards,
Ricardo Canelas





2009/11/21 David Colignon <David.Colignon at ulg.ac.be>

> Hi Ricardo,
>
> may I suggest you to read
>
> ``C. Geuzaine and J.-F. Remacle. Gmsh: a three-dimensional finite element
> mesh generator with built-in pre- and post-processing facilities.
> International Journal for Numerical Methods in Engineering, Volume 79, Issue
> 11, pages 1309-1331, 2009''
>
> http://geuz.org/gmsh/gmsh_paper_preprint.pdf
>
> Regards,
>
> Dave
>
> --
> David Colignon, Ph.D.
> Collaborateur Logistique du F.R.S.-FNRS
> CÉCI - Consortium des Équipements de Calcul Intensif
> ACE - Applied & Computational Electromagnetics
> Institut Montefiore B28
> Université de Liège
> 4000 Liège - BELGIQUE
> Tél: +32 (0)4 366 37 32
> Fax: +32 (0)4 366 29 10
> WWW:    http://hpc.montefiore.ulg.ac.be/
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>
>
> On 20/11/09 18:14, Ricardo Canelas wrote:
>
>> Hi!
>>
>> I'm relatively new to this world so go soft on me.
>>
>> I am using Gmsh as a mesh generator for a 2D CFD code on my master
>> thesis, but the thing is that i have to be able to explain every step
>> taken by Gmsh when it computes an unstructured mesh. I can't understand
>> the inicial step described in the manual :
>>
>> "For all 2D unstructured algorithms a Delaunay mesh that contains all
>> the points of the
>> 1D mesh is initially constructed using a divide-and-conquer algorithm.
>> Missing edges are
>> recovered using edge swaps. After this initial step three different
>> algorithms can be applied
>> to generate the final mesh..."
>>
>> What 1D mesh? How are there missing edges?
>>
>> The second questions comes regarding the point generation algorithm. I
>> can't find any reference to any, like grid superposition, boudary point
>> distribution...
>>
>> Any help is more than welcome!
>>
>> Best regards,
>>
>>
>> --
>> Ricardo Canelas
>> CEHIDRO - Instituto Superior Técnico, UT Lisboa
>>
>>
>>
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>> gmsh at geuz.org
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>>
>
>


-- 
Ricardo Canelas

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