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How to calculate minimum force required to start motion?

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Old   December 27, 2011, 08:20
Exclamation How to calculate minimum force required to start motion?
s Kumar
Join Date: Jul 2009
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Hello everyone,
I have a 2D elliptical solid in rectangular fluid domain. I want to know what is the minimum horizontal force required to start off the horizontal motion. The fluid is highly viscous. Reynodls number is very low. Stokes law is applicable.
Any idea, how to find the minimum force?

Thanks in advance
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