Drag on a slip spherical particle moving in a couple stress fluid

Drag on a slip spherical particle moving in a couple stress fluid

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The creeping motion of a rigid slip sphere in an unbounded couple stress fluid is investigated.The linear slip boundary condition and the vanishing couple stress condition are applied on the surface of the sphere.A simple formula for the drag force 2 Person Backpack acting on a slip sphere translating in an unbounded couple stress fluid is obtained.

Special cases of the deduced drag formula are concluded and compared with analogous results in the literature.The normalized drag force experienced by the fluid on the slip sphere is represented graphically Funko Rewind and the effects of slip parameter and viscosity coefficients are discussed.