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Refining quadrilateral and hexahedral element meshes
Posted: Fri May 28, 2021 2:01 pm
by fcdiass
Hello everyone!
I would like to know GiD offers some way to refine meshes as proposed by Robert Schneiders in his work "Refining Quadrilateral and Hexahedral Element Meshes".
Here we have some examples of this type of refining in 2D quadrilateral meshes:
- image (1).png (32.31 KiB) Viewed 3048 times
... and in 3D hexahedral meshes:
- image (2).png (58.74 KiB) Viewed 3048 times
See more in:
https://www.researchgate.net/profile/Ro ... Meshes.pdf
Re: Refining quadrilateral and hexahedral element meshes
Posted: Mon May 31, 2021 10:44 am
by escolano
Sorry, GiD cannot do this kind of hexahedra refinements, with pattern of edge subdivisions 1:3
The octtree mesher is doing internally a similar subdivision with pattern 1:2, but in any case it is an internal feature not accessible at user level.
Re: Refining quadrilateral and hexahedral element meshes
Posted: Tue Jun 01, 2021 1:41 am
by fcdiass
escolano wrote:Sorry, GiD cannot do this kind of hexahedra refinements, with pattern of edge subdivisions 1:3
The octtree mesher is doing internally a similar subdivision with pattern 1:2, but in any case it is an internal feature not accessible at user level.
Thanks for your quick answer! Currently, I am doing this transition manually (almost drawing one by one element).
Re: Refining quadrilateral and hexahedral element meshes
Posted: Tue Jun 01, 2021 10:16 am
by escolano
Instead of manually you can do it at Tcl scripting level
e.g. can ask the current mesh for example with
GiD_Info Mesh
and can create new nodes and elements with the command
GiD_Mesh create|delete|edit|get|list
see GiD help on Customization->Tcl/Tk extension