So I missed something :-(
Sorry for disturbing, I remember now that I already saw this option in
the past.
Thanks a lot,
Gregory
Le 22/11/2014 00:01, Jean-François Remacle a écrit :
Hello,
Just put
Mesh.CharacteristicLengthExtendFromBoundary = 0;
in the geo file.
JF
Le 21 nov. 2014 à 03:34, Grégory LEGRAIN <[email protected]
<mailto:[email protected]>> a écrit :
Dear gmsh developers/users,
I am playing with size fields, and I experienced some strange results...
Consider the folllwing geo file :
lc = 1.e-2;
Point(1) = {0.0,0.0,0.0,lc};
Point(2) = {1,0.0,0.0,lc};
Point(3) = {1,1,0.0,lc};
Point(4) = {0,1,0.0,lc};
Line(1) = {4,3};
Line(2) = {3,2};
Line(3) = {2,1};
Line(4) = {1,4};
Line Loop(5) = {2,3,4,1};
Plane Surface(6) = {5};
Field[1] = MathEval;
Field[1].F = "0.1";
Background Field = 1;
As you can see, I should get a mesh with elements of size 0.1.
Unfortunately, I obtain a mesh with size 1.e-2 which was my initial
characteristic length (see isoKO.png). Now, if I set lc=1. I get a
correct mesh (see isoOK.png).
So my question is : did I miss something ? Is it normal that the size
field is only taken into account when it is smaller than the initial
characteristic length ? (i.e. no coarsening possible)
Best regards,
Gregory
PS : I played also with anisotropic meshing, and in this case the
metric is taken into account everywhere except on the boundaries.
--
-------------------------------
Grégory LEGRAIN
Maître de Conférences - Assistant Professor
Responsable de l'option Modélisation et Simulation Mécanique (MSM)
GeM Institut de Recherche en Génie Civil et Mécanique - UMR CNRS 6183
Equipe structure et simulation
Ecole Centrale de Nantes
1 Rue de la Noe, 44321 Nantes, France
Email : [email protected]
<mailto:[email protected]>
Tel : 02.40.37.16.41.
Fax : 02.40.37.25.73.
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/*
Professor Jean-François Remacle
Department of Computational and Applied Mathematics
Rice University
+1 713 348 6160
http://www.geuz.org/gmsh
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--
-------------------------------
Grégory LEGRAIN
Maître de Conférences - Assistant Professor
Responsable de l'option Modélisation et Simulation Mécanique (MSM)
GeM Institut de Recherche en Génie Civil et Mécanique - UMR CNRS 6183
Equipe structure et simulation
Ecole Centrale de Nantes
1 Rue de la Noe, 44321 Nantes, France
Email : [email protected]
Tel : 02.40.37.16.41.
Fax : 02.40.37.25.73.
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