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moving sphere in a confined space with static fluid

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Dear all,

This should have been a simple simulation. One solid sphere moves in a confined space where the surrounding fluid was static, but due to the movement of the sphere, fluid should have some motion. I want to know the drag force this sphere has from the fluid.

I used the FSI module and set the sphere with a velocity of 4um/s, while the inlets and outlet of the fluid phase were all 0 Pa. Run it with a transient solver.
I didn't see any error, and the sphere seemed to move but no flow caused at all and the sphere didn't have any stress on surface.

I suppose I set some boundary condition wrong? Anyone could help me?

Thank you very much.


2 Replies Last Post 15 mar 2016, 23:42 GMT-4

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Posted: 8 years ago 1 mar 2016, 10:55 GMT-5
anyone? This is very important to me. anyone please?
anyone? This is very important to me. anyone please?

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Posted: 8 years ago 15 mar 2016, 23:42 GMT-4
anyone?
anyone?

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