3D Fem pde inhomogeneous geometry
1 view (last 30 days)
Show older comments
nicolas bachelard
on 16 Jan 2017
Commented: Alan Weiss
on 17 Jan 2017
Dear Matlab community,
I wish to perform 3D thermal simulation using the pde toolbox (which works amazingly by the way). I work with a open source software to make my STL file.
I wish to solve my pde on an inhomogeneous system. For instance two domains with different thermal conductivities. If I have been able to solve this problem on a uniform system, I do not know how to define two geometric subdomains.
My question is the following. Can I import two different geometries (different STL loading) and merge them to form an inhomogeneous system? Or should I define this system on my STL-generating software? In the latter case, is there a software that you recommend?
I thank you all for your time
Best regards
Nicolas
0 Comments
Accepted Answer
Alan Weiss
on 17 Jan 2017
Edited: Alan Weiss
on 17 Jan 2017
I am sorry, but currently there is no way to do exactly what you want. The current geometry creation tools do not permit 3-D subdomains.
That said, you might be able to fake the problem by carefully defining nonconstant coefficient functions that take appropriate values in the regions you like. This is not the same as having real subdomains, because the mesh is not going to respect your desired geometry, but for a relatively fine mesh it might not matter too much. And yes, it is quite difficult in general to define the coefficient functions this way, you will have to do some work.
Alan Weiss
MATLAB mathematical toolbox documentation
0 Comments
More Answers (1)
nicolas bachelard
on 17 Jan 2017
1 Comment
Alan Weiss
on 17 Jan 2017
I'm glad that you like the toolbox. It is certainly under active development. However, I am not allowed to comment on any future features.
Alan Weiss
MATLAB mathematical toolbox documentation
See Also
Categories
Find more on Boundary Conditions in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!