ROLE OF MICRO-CONVECTION DUE TO NON-AFFINE MOTION OF PARTICLES IN A MONO-DISPERSE SUSPENSION

Authors
GUPTE SK ADVANI SG HUQ P
Citation
Sk. Gupte et al., ROLE OF MICRO-CONVECTION DUE TO NON-AFFINE MOTION OF PARTICLES IN A MONO-DISPERSE SUSPENSION, International journal of heat and mass transfer, 38(16), 1995, pp. 2945-2958
Citations number
9
Categorie Soggetti
Mechanics,"Engineering, Mechanical",Thermodynamics
Journal title
International journal of heat and mass transfer → ACNP
ISSN journal
00179310
Volume
38
Issue
16
Year of publication
1995
Pages
2945 - 2958
Database
ISI
SICI code
0017-9310(1995)38:16<2945:ROMDTN>2.0.ZU;2-0
Abstract
Non-affine translation of suspended particles in a flowing suspension causes micro-convection of the fluid in the vicinity of the particle w hich affects the local transport mechanisms in the suspension. To inve stigate the importance of micro-convection on heat transport, a unit c ell approach is adopted. A parametric study investigates the influence of particle fall velocity in a quiescent fluid and particle volume fr action on micro-convection in a sedimenting suspension. The thermal fl ux across the unit cell is shown to be a function of modified Peclet n umber that includes the influence of Volume fraction for the range of volume fractions (O < epsilon < 0.3) and for Pe similar to 0(1). This is used to investigate the influence of hindered settling on transport processes such as heat transfer occurring in a sedimenting suspension .