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Membrane Deformation without Convergence or Mass Conservation
Posted 22 avr. 2015, 00:55 UTC−4 Chemical Reaction Engineering, Electrochemistry, Structural Mechanics Version 5.0 1 Reply
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In the attached file I deform a spherical membrane filled with water with a force applied across a boundary. The applied force appears to cause a deformation that does not converge, but just continues to expand in the direction of the force without stopping. Furthermore, although I have specified the inner fluid to be nearly incompressible, the object appears to constantly increase in volume, suggesting that mass is not conserved. How can I set up this problem such that a deformation at one point on the object causes a complementary deformation elsewhere on the object such that volume is conserved?
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1 Reply Last Post 22 avr. 2015, 02:35 UTC−4
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Posted:
9 years ago
Hi,
My colleague Walter has written two very interesting blog posts on the theme of controlling the volume of a cavity:
www.comsol.com/blogs/computing-controlling-volume-cavity
www.comsol.com/blogs/modeling-hydrostatic-pressure-fluid-deformable-container
I think they will contain the information you are looking for.
Regards,
Henrik
My colleague Walter has written two very interesting blog posts on the theme of controlling the volume of a cavity:
www.comsol.com/blogs/computing-controlling-volume-cavity
www.comsol.com/blogs/modeling-hydrostatic-pressure-fluid-deformable-container
I think they will contain the information you are looking for.
Regards,
Henrik