[Gmsh] third order tetrahedron mesh

[micdup]

Michel Dupront <michel.dupront at ...> writes:

> 
> 
> HelloWith the following .geo file I create a 3D tetrahedrons mesh of order
3.The element associated to the two physical boundary groups "B" and "U" are
triangles of type 20, ie with 9 nodes. I was expecting triangles of type 21, ie
with 10 nodes. Here I loose the nodes internal to the triangle.How can I change
this behavior ?To generate the mesh I used the command line:gmsh file.geo -3
-order 3 -o file.mshThank you.file.geo"""Point(1) = { 0,  0,  0 };Point(2) = {
1,  0,  0 };Line(1) = {1,2};Transfinite Line{1} = 5 + 1;l = 1;Surf[] = Extrude
{0,l,0} {Line{1}; Layers{5}; }; h = 1;Vol [] = Extrude {0,0,h} {
Surface{Surf[1]}; Layers{5}; };Physical Surface("B") = {Surf[1]};Physical
Surface("U") = {Vol[0]};Physical Volume ("V") = {Vol[1]};""" 		 	   		  
> 
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I could use any help ...
Thank you.