Experimental and numerical study of heat and moisture transfers by natural convection in a cavity filled with solid obstacles

被引：41
|
作者：
Laguerre, O. [1 ]
Benamara, S. [1 ]
Remy, D. [1 ]
Flick, D. [2 ]
机构：
[1] Cemagref, UMR GENIAL, F-92163 Antony, France
[2] AgroParisTech, UMR Genie Ind Alimentaire 1145, F-91300 Massy, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2009年 / 52卷 / 25-26期
关键词：
Obstacles; Cavity; Natural convection; Radiation; Humidity; PARALLEL-PLATE CHANNEL; HUMID AIR; MIXED CONVECTION; VERTICAL CHANNEL; MASS-TRANSFER; BENCHMARK PROBLEM; SQUARE CAVITY; CONDENSATION; TEMPERATURE; EVAPORATION;
D O I：
10.1016/j.ijheatmasstransfer.2009.07.028
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Heat, moisture transfers and airflow by natural convection in a rectangular cavity containing on line cylinders were studied. The work zone was arranged in such a way that 2D transfer and flow were established. At steady state, temperature, velocity and humidity fields on the symmetry plane were measured in unhumidified and humidified cavity. These results were then used to compare with CFD simulation. The thermal stratification and circular air flow in the cavity was observed. Humidification at the bottom face of cavity contributes to increase air velocity. The influence of radiation near the cold and warm walls is significant. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5691 / 5700
页数：10
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