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geometry from results
Posted 29 sept. 2010, 04:35 UTC−4 1 Reply
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Hi,
I have simulated two-phase flow patterns in COMSOL (2D) using the phase field method and I export model fem structure to matlab. My entire model has only one domain and I solve for the volume fraction in this domain. Hence volume fractions close to 1 indicate one phase and zero indicates the presence of the second phase.
I now want to define a new geometry based on the results I have obtained for doing mass transfer modeling. Say for instance, in a region containing a circular bubble (i.e. gas phase volume fraction=1), I need to create a geometry that has the exact boundary as this bubble.
My guess is that I need to obtain the values of the volume fraction at all points and try to form a curve with them and then create a solid from the curve object.
Is this the correct way / is there a better way of doing this ? Any ideas on how to go about this ?
Thanks,
Harish
I have simulated two-phase flow patterns in COMSOL (2D) using the phase field method and I export model fem structure to matlab. My entire model has only one domain and I solve for the volume fraction in this domain. Hence volume fractions close to 1 indicate one phase and zero indicates the presence of the second phase.
I now want to define a new geometry based on the results I have obtained for doing mass transfer modeling. Say for instance, in a region containing a circular bubble (i.e. gas phase volume fraction=1), I need to create a geometry that has the exact boundary as this bubble.
My guess is that I need to obtain the values of the volume fraction at all points and try to form a curve with them and then create a solid from the curve object.
Is this the correct way / is there a better way of doing this ? Any ideas on how to go about this ?
Thanks,
Harish
1 Reply Last Post 29 sept. 2010, 08:02 UTC−4
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Posted:
1 decade ago
Hi
I believe one way is (but I havent tried it, so pls check ;) to define a meshed sub-volume based on a specific bloean operation on the control variable and then export that mesh to a geometry (this should be possible in 3.5, not sure its ready in V4.0a, (pls check again)
--
Good luck
Ivar
I believe one way is (but I havent tried it, so pls check ;) to define a meshed sub-volume based on a specific bloean operation on the control variable and then export that mesh to a geometry (this should be possible in 3.5, not sure its ready in V4.0a, (pls check again)
--
Good luck
Ivar