Hello everyone Is there a function in Fenics to create cylinders similar to BoxMesh ? For instance to make a mesh for a rectangle one would need to do this. from dolfin import * from mshr import * L=0.12 xmax=0.06 ymax=0.06 wf=0.01 #Making a cylindrical geometry mesho = BoxMesh(Point(0.0,0.0,0…

A built in mesh like the ones here https://fenicsproject.org/docs/dolfin/1.5.0/python/demo/documented/built-in_meshes/python/documentation.html

There are no built in cylinders. I do not see the issue with using mshr to create the cylinder? Is there any issue with that?

I am unable to model heat dissipation over on a cylinder with mshr. I am only able to model heat using the built in meshes.

Have you tried using gmsh to create the cylinder? Also, you need to provide a minimal example that shows what issue you get by using a cylinder instead of a built in box. Does it work using a box built with mshr?

I don’t know how to use gmsh. And yes I tried using the mshr for a box and that didn’t work either.

Please supply a minimal example illustrating your issue, as there must be an error in your code.

I was able to figure it out the problem after noticing that I had to scale it. Thanks for your responses.

Creating a Cylinder Mesh

mesh

dokken July 28, 2020, 5:43am 2

When you say similar to boxmesh, what do you imply? As you said, you can create cylindrical meshes with mshr, see for instance: How to make a 3D Cylinder Mesh?

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Creating a Cylinder Mesh

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