通风腔混合对流的相关性

Revue Générale de Thermique Pub Date : 1998-11-01 DOI:10.1016/S0035-3159(98)80012-3

Abdelghani Raji , Mohammed Hasnaoui

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引用次数: 31

摘要

本文用数值方法研究了在均匀侧流条件下的矩形通风腔内层流混合对流换热问题。考察了瑞利数和雷诺数分别为103≤Ra≤106和5≤Re≤5·103时的流场、温度场和换热率。通过考虑空气作为工作流体(Pr = 0.72)和开口的恒定相对高度(B = 14)，提出了有用的相关性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Corrélations en convection mixte dans des cavités ventilées

In this work, the laminar mixed convection heat transfer in a ventilated rectangular cavity submitted to uniform heat flux from the side is studied numerically. Flow fields, temperature fields and heat transfer rates are examined for values of Rayleigh and Reynolds numbers such as: 10³ ≤ Ra ≤ 10⁶ and 5 ≤ Re ≤ 5·10³. Useful correlations are proposed by considering air as a working fluid (Pr = 0.72) and a constant relative height of the openings ( $B = 14$ ).

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Revue Générale de Thermique

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