Chin. Phys. B ›› 2012, Vol. 21 ›› Issue (12): 126601-126601.doi: 10.1088/1674-1056/21/12/126601
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
魏恩泊a, 纪艳菊a b, 张军c
Wei En-Bo (魏恩泊)a, Ji Yan-Ju (纪艳菊)a b, Zhang Jun (张军)c
摘要: Under a simple shearing flow, the effective viscosity of solid suspensions can be reduced by controlling the inclusion particle size or the number of inclusion particles in a unit volume. Based on the Stokes equation, the transformation field method is used to model the reduction behaviour of effective viscosity of solid suspensions theoretically by enlarging the particle size at a given high concentration of particles. With a lot of samples of random cubic particles in a unit cell, our statistical results show that at the same higher concentration, the effective viscosity of solid suspensions can be reduced by increasing the particle size or reducing the number of inclusion particles in a unit volume. This work discloses the viscosity reduction mechanism of increasing particle size, which is observed experimentally.
中图分类号: (Viscosity of liquids; diffusive momentum transport)