[Gmsh] Adaptive meshes in GMSH

[Geordie McBain]

2011/5/2 Gmsh User <amrit_pou at hotmail.com>:
> Hello everyone,
> I have been wondering if it were possible to obtain adaptive meshes with Gmsh.
> By adaptive meshes I mean those with variable characteristic length set by the
> user. If this is possible, I'd appreciate if some one could point me to
> appropriate tutorial/example/manual page. It'd be nice if we can define how
> characteristic length varies at different points in .geo file so that we obtain
> an adaptive mesh when we mesh the geometry in Gmsh.

Gmsh has extensive capabilities in this direction; see

http://geuz.org/gmsh/doc/texinfo/gmsh.html#Specifying-mesh-element-sizes
http://geuz.org/gmsh/doc/texinfo/gmsh.html#t5_002egeo
http://geuz.org/gmsh/doc/texinfo/gmsh.html#t7_002egeo