[Gmsh] discrete-continuum mesh

[Christophe Geuzaine]

Kovacs, Attila wrote:
> Dear Authors,
>  
> First of all I have to congratulate for your mesh generator. It is an 
> excellent tool, and I appreciete using it.
> I also have a question to you. I intend to test the difference between 
> the groundwater flow regimes of a pure discrete network model and a 
> combined discrete-continuum model.
> For the latter purpose I need a mesh generation approach which can 
> combine 2d and 3d elements in a manner that the nodes and edges of 
> neighbouring elements of different dimensions are geometrically identical.
> In other words I need to fill in the space with tetrahedrons among the 
> 2d element sheets representing fractures of varying direction.
> I tried to merge a pre-generated discrete finite element network into a 
> geometric volume in GMSh, and lounched a 3d mesh generation, but the 
> sides of the 3d elements doesn't seem to fit the edges of the 2d 
> elements along fracture plains.

They should. Could you send a small example?



> Do you have a method for solving this problem?
>  
> Thanks and best regards:
> Attila Kovacs
>  
> Attila Kovacs, Ph.D.
> Golder Associates (Magyarország) Kft.
> 1021 Budapest
> Huvösvölgyi út 54.
> Tel.: +36 (1) 394 0005
> Fax.: +36 (1) 394 0002
> Mobil: +36 (20) 357 6809
> E-mail: Attila_Kovacs at golder.hu <mailto:Attila_Kovacs at golder.hu>
>  
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-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org