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Deformed geometry : How to use the coordinates of a boundary in the deformed geometry as a variable?
Posted Apr 27, 2015, 8:55 a.m. EDT Geometry, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions 1 Reply
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Hi
In my model, I am using the Weak form PDE module and I require to use the at() operator for a source term.
For the first argument of the operator, I require the coordinates of one of the boundaries of my model, but it is deformed by a prescribed mesh velocity and is not stationary.
I could integrate the velocity over time and figure out the displacement, but I think there should be a straightforward way to get the displacement. Can someone shed any light on this?
(My model is 1D, so I'm using the at1 operator.)
Thanks
George
In my model, I am using the Weak form PDE module and I require to use the at() operator for a source term.
For the first argument of the operator, I require the coordinates of one of the boundaries of my model, but it is deformed by a prescribed mesh velocity and is not stationary.
I could integrate the velocity over time and figure out the displacement, but I think there should be a straightforward way to get the displacement. Can someone shed any light on this?
(My model is 1D, so I'm using the at1 operator.)
Thanks
George
1 Reply Last Post Apr 28, 2015, 11:06 a.m. EDT
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Posted:
10 years ago
Dear George,
You could create an integration point on your outside boundary, if you then use intop1(x) you will get the spatial coordinate of that point.
The material coordinate uses capital X. And the difference between the two is the deformation.
A bit more information on this can be found here:
www.comsol.com/blogs/heat-transfer-deformed-solids/
Best regards,
Frank
You could create an integration point on your outside boundary, if you then use intop1(x) you will get the spatial coordinate of that point.
The material coordinate uses capital X. And the difference between the two is the deformation.
A bit more information on this can be found here:
www.comsol.com/blogs/heat-transfer-deformed-solids/
Best regards,
Frank