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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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How to load geometry and material?

Posted 2012年8月27日 GMT-4 18:06 RF & Microwave Engineering, Geometry, Materials Version 4.2a 4 Replies

Xin Zhang
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I want to load a geometry and its material into RF Module. The geometry is a 3D box and is divided into many (e.g. 1000) small cubic pixels with the same size. Each pixel has a unique material property, say permittivity and conductivity. All of the material information (1000 permittivity and 1000 conductivity) is saved in two text files. Can anyone teach me how to load this?

Thank you.

Xin
4 Replies Last Post 2012年9月30日 GMT-4 08:17
COMSOL Moderator

Hello Xin Zhang

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Xin Zhang
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Posted: 1 decade ago 2012年9月28日 GMT-4 09:11
I just got a 14 day trial of version 4.3. I am now able to use the RF module to do some simple simulations. However, the simulation I hope COMSOL can tackle requires loading of geometry and material. Can someone please help me on this? I need this urgently since the trial only allows 14 days. If it turns out COMSOL can handle my simulations, my boss will but it for sure. Thank you very much.

Xin
I just got a 14 day trial of version 4.3. I am now able to use the RF module to do some simple simulations. However, the simulation I hope COMSOL can tackle requires loading of geometry and material. Can someone please help me on this? I need this urgently since the trial only allows 14 days. If it turns out COMSOL can handle my simulations, my boss will but it for sure. Thank you very much. Xin
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2012年9月28日 GMT-4 14:51
Hi

unfortunately I do not know of any easy way to automatise this within COMSOL (but I do far not know everything about COMSOL ;), apart if perhaps your geoemtry is well defined, then you could set up some long formulas for the material that are spatialy dependent hence change the materials w.r.t. the position.

Another way is to write everything from Matlab, as then you have the programming language approach to systematise it.

On the other hand 1000 domains will require quite some meshing, you might run out of RAM before you get everything up.

My advice start simple, and go step by step, I agre 14 days is short for complex models

--
Good luck
Ivar
Hi unfortunately I do not know of any easy way to automatise this within COMSOL (but I do far not know everything about COMSOL ;), apart if perhaps your geoemtry is well defined, then you could set up some long formulas for the material that are spatialy dependent hence change the materials w.r.t. the position. Another way is to write everything from Matlab, as then you have the programming language approach to systematise it. On the other hand 1000 domains will require quite some meshing, you might run out of RAM before you get everything up. My advice start simple, and go step by step, I agre 14 days is short for complex models -- Good luck Ivar
Xin Zhang
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Posted: 1 decade ago 2012年9月29日 GMT-4 17:23
Hi Ivar,

Thanks very much for your reply. Do you know where I can get a tutorial for the MATLAB LiveLink?

Thanks.

Xin
Hi Ivar, Thanks very much for your reply. Do you know where I can get a tutorial for the MATLAB LiveLink? Thanks. Xin
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2012年9月30日 GMT-4 08:17
Hi

check the webinar list, and the videos ont he main COMSOL site we pages, or ask your rep

--
Good luck
Ivar
Hi check the webinar list, and the videos ont he main COMSOL site we pages, or ask your rep -- Good luck Ivar

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