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How to apply an acceleration at a specific location within a surface?
Posted Oct 15, 2010, 11:00 a.m. EDT 2 Replies
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Hi
I am trying to apply a acceleration at a specific location on a uniform rectangular tube which needs a uniform swept mesh with a defined number of elements along its length. The acceleration is not appplied to a whole surafce, but just a part of it, or on some of the nodes within the mesh for the chosen surface. How can this be done? I would appreciate anyone's help in giving me details on how to apply this acceleration. I am using Comsol 4.0a Acoustics Module to solve this problem.
I do not want Free Tetrahedral mesh since I want to compare result from Comsol with that from Matlab, I want to make sure two models have same elements and same element distribution.
Many thanks
Guangjian Ni
I am trying to apply a acceleration at a specific location on a uniform rectangular tube which needs a uniform swept mesh with a defined number of elements along its length. The acceleration is not appplied to a whole surafce, but just a part of it, or on some of the nodes within the mesh for the chosen surface. How can this be done? I would appreciate anyone's help in giving me details on how to apply this acceleration. I am using Comsol 4.0a Acoustics Module to solve this problem.
I do not want Free Tetrahedral mesh since I want to compare result from Comsol with that from Matlab, I want to make sure two models have same elements and same element distribution.
Many thanks
Guangjian Ni
2 Replies Last Post Oct 18, 2010, 5:30 a.m. EDT
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Posted:
1 decade ago
Hi
I normally defie a sub-surface (I cut the full one) and define my BC there. But often one can use bolean operations (of the type
ax*(x_low<x)*(x<x_high)
too to delimit an area (provided the equations remain easily manageable and to verify)
--
Good luck
Ivar
I normally defie a sub-surface (I cut the full one) and define my BC there. But often one can use bolean operations (of the type
ax*(x_low<x)*(x<x_high)
too to delimit an area (provided the equations remain easily manageable and to verify)
--
Good luck
Ivar
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Posted:
1 decade ago
Hi Ivar,
I have meshed model as your suggestion and it works. Thank you for your kind help.
Regards
Ni
I have meshed model as your suggestion and it works. Thank you for your kind help.
Regards
Ni