Local turbulent opposing mixed convection heat transfer in inclined flat channel for unstably stratified airflow

被引：5

作者：

Poskas, R ^{[1
]}

Poskas, P ^{[1
]}

Sabanskis, D ^{[1
]}

机构：

[1] Lithuanian Energy Inst, Nucl Engn Lab, LT-44403 Kaunas, Lithuania

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2005年 / 48卷 / 05期

关键词：

heat transfer; turbulent mixed convection; inclined flat channel; opposing airflows; unstable stratification; experiments;

D O I：

10.1016/j.ijheatmasstransfer.2004.09.025

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Local turbulent mixed convection heat transfer in inclined (from psi = 0degrees (horizontal position) till psi = 90degrees (vertical position)) flat channels for opposing flows was investigated for the case when only bottom wall is heated (unstably stratified flow conditions). Wide ranges of airflow parameters are covered: Re = 4 x 10(3)-6.6 x 10(4), Gr(q) = 4.7 x 10(7)-6.3 x 10(10), pressure p = 0.1; 0.2; 0.4; 0.7; 1.0 MPa. Correlation for calculation of heat transfer in inclined flat channels was suggested for the region without buoyancy instabilities. The experimental data were compared with the recent experimental data for inclined flat channels when upper wall is heated (stably stratified flow conditions). (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：956 / 964

页数：9

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