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how to create geometry with infinite dimension

Posted 2014年9月10日 GMT-4 02:30 Acoustics & Vibrations, Geometry Version 4.3b 3 Replies

Keshav Samrat Modi
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I am new to comsol and start learning it. i want to design an environment filled with water (like pond). suggest me how to design it.
3 Replies Last Post 2014年9月12日 GMT-4 09:26
Martijn Weterings
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Posted: 1 decade ago 2014年9月10日 GMT-4 08:25
Infinite dimensions are not possible without tricks since FEM requires the entire space to be divided into a finite number of elements.

Often you use some physical argument that allows to reduce the size of the geometry and provide a proper treatment of the changes, for instance introduction of borders or a coordinate transformation.

I imagine that you could use a finite piece with a periodic condition at the borders. But your problem is not very well described to be sure about this.
Infinite dimensions are not possible without tricks since FEM requires the entire space to be divided into a finite number of elements. Often you use some physical argument that allows to reduce the size of the geometry and provide a proper treatment of the changes, for instance introduction of borders or a coordinate transformation. I imagine that you could use a finite piece with a periodic condition at the borders. But your problem is not very well described to be sure about this.
Keshav Samrat Modi
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Posted: 1 decade ago 2014年9月12日 GMT-4 02:02
Dear Martijn how we can introduce coordinate transformation.
Dear Martijn how we can introduce coordinate transformation.
Martijn Weterings
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Posted: 1 decade ago 2014年9月12日 GMT-4 09:26
It depends. What transformation are you looking for?
It depends. What transformation are you looking for?

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