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Posted 29.08.2014, 12:53 GMT-4 Geometry Version 4.4 2 Replies

Micheal Anderson
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I'm trying to write a code where i need to determine the index of different domains so i can attribute different charges and dielectric constants. this procedure is in a loop where in every step these constants change so i need to know the index of each domain. is there any way ?
2 Replies Last Post 10.07.2017, 05:48 GMT-4
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Hello Micheal Anderson

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Loïc Prince
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Posted: 7 years ago 09.07.2017, 19:13 GMT-4
Hi Micheal,

Did you succeed to solve your problem ?
Because I want to do the same thing...
Hi Micheal, Did you succeed to solve your problem ? Because I want to do the same thing...
Lorant Olasz COMSOL Employee

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Posted: 7 years ago 10.07.2017, 05:48 GMT-4
Hi Loic,

Instead of domain numbers I would like to direct your attention to selections. Selections will enable you to do the type of model set-up that I understand you would like to do.

The following video series is a good introduction to selections:
www.comsol.com/video/selections-streamline-comsol-multiphysics-modeling-workflow

The apps linked to from the blogs below are just a couple of examples you will find on our website (if you search for "selections") of how powerful selections are in helping with assigning physics to geometry:
www.comsol.com/blogs/intro-to-optimizing-mixer-design-by-creating-an-app/
www.comsol.com/blogs/how-to-dynamically-modify-geometries-in-simulation-apps/

There is also a blog series discussing selections in the context of LiveLink for MATLAB, which you will find here:
www.comsol.com/blogs/tag/working-with-m-files/

Best regards,
Lorant
Hi Loic, Instead of domain numbers I would like to direct your attention to selections. Selections will enable you to do the type of model set-up that I understand you would like to do. The following video series is a good introduction to selections: https://www.comsol.com/video/selections-streamline-comsol-multiphysics-modeling-workflow The apps linked to from the blogs below are just a couple of examples you will find on our website (if you search for "selections") of how powerful selections are in helping with assigning physics to geometry: https://www.comsol.com/blogs/intro-to-optimizing-mixer-design-by-creating-an-app/ https://www.comsol.com/blogs/how-to-dynamically-modify-geometries-in-simulation-apps/ There is also a blog series discussing selections in the context of LiveLink for MATLAB, which you will find here: https://www.comsol.com/blogs/tag/working-with-m-files/ Best regards, Lorant

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