ANALYSIS OF PASSIVE COOLING IN A VERTICAL FINITE CHANNEL USING A FALLING LIQUID-FILM AND BUOYANCY-INDUCED GAS VAPOR FLOW

被引：0
|
作者：
CHIANG, H [1 ]
KLEINSTREUER, C [1 ]
机构：
[1] N CAROLINA STATE UNIV,DEPT MECH & AEROSP ENGN,RALEIGH,NC 27695
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1991年 / 34卷 / 09期
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D O I：
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中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A fundamental study of the coupled effects of a falling, partially vaporizing liquid film and buoyancy-induced gas-vapor flow in a vertical one-sided heated channel is presented for different film Reynolds numbers, liquid film inlet temperatures, wall heat fluxes and channel spacings. The transient (elliptic) gas-phase transport equations are solved numerically in conjunction with the laminar (parabolic) liquid film equations. The validated computer simulation model is used to depict transient developments of streamlines, gas-phase parameters and interfacial quantities as well as steady-state velocity profiles, temperature profiles and averaged Nusselt number distributions. The present analysis may contribute to the solution of passive cooling problems associated with electronic equipment operations, manufacturing processes, modern nuclear power plant designs and numerous environmental phenomena.
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页码：2389 / 2394
页数：6
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