Unsteady conjugate forced convection heat/mass transfer in ensembles of Newtonian fluid spheres

被引：5

作者：

Juncu, Gheorghe ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Catedra Ingn Chim, Bucharest 78126, Romania

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 13-14期

关键词：

Conjugate heat/mass transfer; Drops; Bubbles; Forced convection; Ensembles; Cell models; POWER-LAW LIQUIDS; MASS-TRANSFER; HEAT-TRANSFER; MODERATE REYNOLDS; VISCOUS-FLOW; MULTIPARTICLE SYSTEMS; SPHERICAL DROPLET; CELL MODEL; SINGLE; BUBBLES;

D O I：

10.1016/j.ijheatmasstransfer.2010.02.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The unsteady, conjugate, forced convection heat/mass transfer from ensembles of mono-size Newtonian fluid spheres to Newtonian fluids has been studied at moderate Peclet and Reynolds numbers. The cell model has been used to account for the spheres hydrodynamic interactions. The momentum and heat/mass balance equations were solved numerically in spherical coordinates system by a finite difference method. The values considered for the sphere exterior Reynolds number are Re-2 <= 200. The influence of the voidage and physical properties ratios on the heat/mass transfer rate was analysed for sphere Peclet numbers, Pe(1(2)) <= 10(4), and three fluid - fluid systems: gas-liquid, liquid-liquid and liquid-gas. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2780 / 2789

页数：10

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