Study on the Tubular Pinch Effect in a Pipe Flow : I. Lateral migration of a single particle in laminar poiseuille flow

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概要

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• In laminar flow of suspensions through a circular tube, particles migrate into a concentric annular region with the radius about 0.6 of the tube radius. This phenomenon is well-known as the tubular pinch effect. To clarify the mechanism, the influences of relative particle-fluid velocity, Reynolds number and particle diameter on radial particle displacement (lateral migration) were investigated by measuring the motion of a suspended spherical particle in laminar flow through a circular tube. Consequently, it was found that the motions of particles could be classified by the particle Reynolds number. And, especially, the relation between the particle Reynolds number and the equilibrium radial position of particles and the existence of critical particle Reynolds number for shifting from unilateral migration to bilateral migration were clarified.

• 一般社団法人日本機械学会の論文

著者

• Anzai Hiroshi

  Faculty Of Engineering Tokyo Institute Of Technology

• AOKl Hiroshi

  Faculty of Engineering,Tokyo Institute of Technology

• KUROSAKl Yasuo

  Faculty of Engineering,Tokyo Institute of Technology

• Aokl Hiroshi

  Faculty Of Engineering Tokyo Institute Of Technology

• Kurosakl Yasuo

  Faculty Of Engineering Tokyo Institute Of Technology

関連論文

• Study on the Tubular Pinch Effect in a Pipe Flow : I. Lateral migration of a single particle in laminar poiseuille flow

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