Shear-induced particle migration modelling in a concentrated suspension flow

被引:10
作者
Chen, X [1 ]
Lam, YC
Tan, KW
Chai, JC
Yu, SCM
机构
[1] Nanyang Technol Univ, Singapore MIT Alliance Programme, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore
关键词
D O I
10.1088/0965-0393/11/4/307
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Shear-induced particle migration was investigated by using a continuum diffusive-flux model for the creep flow of nickel-powder-filled polymers, which is viscous with shear-thinning characteristics. The model, together with flow equations, was employed for solving the generalized-Newtonian flow patterns and non-uniform particle concentration distribution of mono-modal suspensions in a pressure-driven tube flow. Particle volume fraction and velocity fields for the non-homogeneous shear flow field were predicted with different particle concentrations. Effects of different viscosity models of the binder system on particle migration during non-homogeneous shear fluid flow were investigated.
引用
收藏
页码:503 / 522
页数:20
相关论文
共 23 条
[1]   EXPERIMENTAL-OBSERVATIONS OF PARTICLE MIGRATION IN CONCENTRATED SUSPENSIONS - COUETTE-FLOW [J].
ABBOTT, JR ;
TETLOW, N ;
GRAHAM, AL ;
ALTOBELLI, SA ;
FUKUSHIMA, E ;
MONDY, LA ;
STEPHENS, TS .
JOURNAL OF RHEOLOGY, 1991, 35 (05) :773-795
[2]   Assessment of particle-migration effects in pressure-driven viscometric flows [J].
Allende, M ;
Kalyon, DM .
JOURNAL OF RHEOLOGY, 2000, 44 (01) :79-90
[3]  
AVERBAKH A, 1997, INT J MULTIPHASE FLO, V23, P613
[4]  
Carnahan B., 1969, APPL NUMERICAL METHO
[5]   SHEAR-INDUCED PARTICLE MIGRATION IN COUETTE AND PARALLEL-PLATE VISCOMETERS - NMR IMAGING AND STRESS MEASUREMENTS [J].
CHOW, AW ;
SINTON, SW ;
IWAMIYA, JH ;
STEPHENS, TS .
PHYSICS OF FLUIDS, 1994, 6 (08) :2561-2576
[6]  
Christopher W., 1994, Rheology: Principles, Measurements, and Applications
[7]   A particle suspension model: an unstructured finite-volume implementation [J].
Fang, ZW ;
Phan-Thien, N .
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1999, 80 (2-3) :135-153
[8]   SHEAR-INDUCED STRUCTURE IN A CONCENTRATED SUSPENSION OF SOLID SPHERES [J].
GADALAMARIA, F ;
ACRIVOS, A .
JOURNAL OF RHEOLOGY, 1980, 24 (06) :799-814
[9]  
GERMAN RM, 1991, POWDER INJECTION MOL
[10]   Migration of particles undergoing pressure-driven flow in a circular conduit [J].
Hampton, RE ;
Mammoli, AA ;
Graham, AL ;
Tetlow, N ;
Altobelli, SA .
JOURNAL OF RHEOLOGY, 1997, 41 (03) :621-640