COMBINED HEAT AND MASS TRANSFER WITH PHASE CHANGE IN A VERTICAL CHANNEL

被引：2

作者：

Kassim, Mohamed Aboudou ^{[1
]}

Benhamou, Brahim ^{[1
]}

Harmand, Souad ^{[2
]}

机构：

[1] CNRST Associate Unit URAC27, POB 23903, Marrakech 40001, Morocco

[2] Univ Valparaiso, Valenciennes, France

来源：

COMPUTATIONAL THERMAL SCIENCES | 2010年 / 2卷 / 04期

关键词：

numerical study; channel flow; heat and mass transfer; mixed convection; buoyancy forces; flow reversal; condensation;

D O I：

10.1615/ComputThermalScien.v2.i4.10

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The objective of this study is to investigate numerically the effects of mixed convection heat and mass transfer with phase change in a vertical parallel-plate channel. One of the plates is wetted by a thin liquid water film and maintained at a constant temperature, while the other is dry and thermally insulated. The mathematical model is solved numerically by the finite volume method. Buoyancy forces' effects on heat and mass transfer and hydrodynamic field are studied. The results show that these forces have an important effect on the flow field as well as on heat and mass transfer characteristics. Indeed, they act in the opposite direction of the upward flow and induce a flow reversal near the isothermal plate. Heat and mass transfers are diminished by buoyancy forces, which slow down the flow.

引用

页码：299 / 310

页数：12

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