Non-Newtonian Viscosity of a Concentrated Suspension of Deformable Shell Particles

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概要

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• The effects of the deformation of suspended particles on the viscosity of a concentrated suspension are investigated theoretically. The suspension consists of neutrally-buoyant particles suspended uniformly in an incompressible Newtonian fluid. The suspended particles are incompressible Hookean shells filled with an incompressible Newtonian fluid and are spherical in shape in their undeformed state. The free surface cell model proposed by Happel is adopted. The equation of the surface of a particle in simple shear flow is obtained assuming that the deformation is very small. The viscosity of the suspension is obtained, based on the calculation of the energy dissipated per unit volume of the suspension. It is shown that the relative viscosity decreases as the shear rate increases.

• 社団法人応用物理学会の論文
• 1982-05-20

著者

• Murata Tadayoshi

  Department Of Physics Faculty Of Science Tokyo Metropolitan University

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