摘要
本文以冰箱蒸发器等实际问题为背景，以空气为介质用数值模拟方法研究了封闭方腔内水平孤立平板层流自然对流时Ｒａ数及平板位置变化对Ｎｕｍ的影响，得出了可供工程应用参考的结论。同时用烟可视化的实验验证了计算结果的正确性。
In this paper, the laminar natural convection heat transfer of air in a square enclosure with an isolated horizontal plate was numerically studied. It was found that the plate average Nusselt number increased with the increase in Rayleigh number. The effects of the plate position on the heat transfer and flow were also investigated. The flow pattern was revealed by smoking technique, and the agreement between the predicted flow pattern and the flow visualization result was quite good.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1994年第2期195-199,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金
关键词
封闭方腔
平板
自然对流热
square enclosure, isolated horizontal plate, natural convection heat transfer.
