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Water flowing into an object, and the object deforms such as a waterballoon

Posted 19 feb 2011, 19:31 GMT-5 Fluid & Heat, Computational Fluid Dynamics (CFD), Geometry, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics Version 3.5a 2 Replies

Shane Cyriac
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Hi,
I was wondering if there is a way to have fluid interaction with a solid that will deform like a balloon due to an inlet of water coming into the object.

What model library could i use to view pressures at the wall of the balloon due to the fluid flowing in?

it would have to include large deformations and such.

thank you
2 Replies Last Post 23 feb 2011, 18:11 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 20 feb 2011, 07:50 GMT-5
HI

I would say a mix of FSI with in addition large displacements for the structural part, or even hyperelastic physics/materials.
But I havent checked if that is already implemented in FSI. If not you will have to link the physics yourself. A good exercice ;)

--
Good luck
Ivar
HI I would say a mix of FSI with in addition large displacements for the structural part, or even hyperelastic physics/materials. But I havent checked if that is already implemented in FSI. If not you will have to link the physics yourself. A good exercice ;) -- Good luck Ivar
Shane Cyriac
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Posted: 1 decade ago 23 feb 2011, 18:11 GMT-5
We created a 3-D model in Incompressible Navier-Stokes and entered in a fluid flow, however, the model won't deform as we'd like it to. After implementing the Solid Stress-Strain module, the model shows a uniform amount of pressure, however, at one point it looks like there is a leak in the model. I've attached the model for examination. Thanks in advance.
We created a 3-D model in Incompressible Navier-Stokes and entered in a fluid flow, however, the model won't deform as we'd like it to. After implementing the Solid Stress-Strain module, the model shows a uniform amount of pressure, however, at one point it looks like there is a leak in the model. I've attached the model for examination. Thanks in advance.

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