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How to use the meshed grids as seperate domains?
Posted 27 mag 2015, 12:04 GMT-4 Geometry, Materials, Mesh, Studies & Solvers Version 5.1 2 Replies
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In my model, the material properties change along with every single grid. So I should try to make sure that every grid is a single domain so that I can assign a different material property. Anyboby knows how to implement that? In COMSOL or COMSOL with matlab, either is OK. Thanks in advance!
Venn WU
Venn WU
2 Replies Last Post 28 mag 2015, 01:54 GMT-4
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Posted:
1 decade ago
You can make the material property a function of the spatial coordinates like for a density rho = f(x,y,z). You can do that in COMSOL.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
I do not need the material properties to change with the spatial coordinates, while rather change with the specific discretized element (depending on the mesh). I want the properties to change, say, the density rho as a function of the element, each element here regarded as a single domain.
I know how to assign different properties to different domains. But the problem is that here I want the deleberately treat each element as an indepent domain, to which I want to assign a different value. If I just make the material property as a function of the spatial coordinates, how to make sure that it exactly belongs to the very domain (the very element here).
I come up with an idea that I first draw the geometry with the domains, then I mesh the geometry with the elements just as the size of the domains of the geometry (each element now is corresponding to a separate domain), and under the "materal node" I create separate material nodes which are assigned to separate domains, but the work is enormous if I enlarge the meshed element, which means I have to assign hundreds or even thousands of seperate material nodes. Any simple or convenient method ? By making the material properties change with element, any function or code is capable of implementing this? Or script with matlab? Many thanks.
Venn Wu
I know how to assign different properties to different domains. But the problem is that here I want the deleberately treat each element as an indepent domain, to which I want to assign a different value. If I just make the material property as a function of the spatial coordinates, how to make sure that it exactly belongs to the very domain (the very element here).
I come up with an idea that I first draw the geometry with the domains, then I mesh the geometry with the elements just as the size of the domains of the geometry (each element now is corresponding to a separate domain), and under the "materal node" I create separate material nodes which are assigned to separate domains, but the work is enormous if I enlarge the meshed element, which means I have to assign hundreds or even thousands of seperate material nodes. Any simple or convenient method ? By making the material properties change with element, any function or code is capable of implementing this? Or script with matlab? Many thanks.
Venn Wu
You can make the material property a function of the spatial coordinates like for a density rho = f(x,y,z). You can do that in COMSOL.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com