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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 The information provided may be out of date.

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Mixed mesh elements

Posted Jun 30, 2011, 2:57 a.m. EDT Mesh Version 4.1, Version 4.2 3 Replies

mb
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Hello,

for special cases, where there are high gradients very locally in a large domain, it would be useful to be able to mesh around this area very fine with linear elements and further away to have coarser but higher-order elements.

Is this possible? I only found the global choice of element order type in the Discretization tab under the physics node.

Thanks,
Marcel
3 Replies Last Post Jul 1, 2011, 2:17 a.m. EDT
Shuo Wang
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Posted: 1 decade ago Jun 30, 2011, 6:53 a.m. EDT
you can try the feature "Refine Elements in Box"
(right click "Mesh">"More operations">"Refine", then locate the "Refine Elements in Box" option in the Settings window)
that way you can refine a specific area as you wish.
you can try the feature "Refine Elements in Box" (right click "Mesh">"More operations">"Refine", then locate the "Refine Elements in Box" option in the Settings window) that way you can refine a specific area as you wish.
Onur Ilkorur
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Posted: 1 decade ago Jun 30, 2011, 9:52 a.m. EDT
If your model enables such a change; you can divide your geometry into sections with boolean operations. You can create a section in which your detailed geometry resides and you can create another section in which you can apply a coarse mesh. Between the sections, it will be continuity boundary condition.
/Hope it helps,
Onur
If your model enables such a change; you can divide your geometry into sections with boolean operations. You can create a section in which your detailed geometry resides and you can create another section in which you can apply a coarse mesh. Between the sections, it will be continuity boundary condition. /Hope it helps, Onur
mb
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Posted: 1 decade ago Jul 1, 2011, 2:17 a.m. EDT
Thanks so far,

I know that it is possible to use different mesh densities in different domains. But is it also possible to use elements of different shape order?

Regards
Thanks so far, I know that it is possible to use different mesh densities in different domains. But is it also possible to use elements of different shape order? Regards

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