You have a liquid sitting between 2 plates. A shear stress
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You have a liquid sitting between 2 plates. A shear stress is applied to the top plate causing it to move. (the bottom plate is rigid) This fluid has a yield stress (ty) bellow which it will not move. Assume that the liquid, where in contact with the plate, moves at the same velocity as the plate. Also assume that the fluid has a constant viscosity above ty.
I'm trying to derive a relationship between force applied and velocity of the top plate when the stress is above the yield stress.
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