Natural convection heat transfer in a square enclosure containing water near its density maximum
Natural convection heat transfer in a square enclosure containing water near its density maximum
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DOI：
10.1016/0017-9310(87)90224-9
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发表时间：
1987-11
影响因子：
5.2
通讯作者：
D. Lin;M. Nansteel
中科院分区：
文献类型：
--
作者：
D. Lin;M. Nansteel
本文用数值方法研究了方形封闭腔内的稳态流动结构、温度和传热。结果的解释取决于一个无量纲的密度分布参数，该参数固定了热壁和冷壁温度相对于极值温度的方向，并且还用于表征外壳中浮力的分布。在一定的密度分布参数范围内，可以观察到与瑞利数（103 <$Ra <$106）无关的多胞流结构。的密度分布参数对跨腔传热的影响被发现是实质性的，并在不断变化的流动结构的上下文中进行了讨论。在文献中与以前的研究进行了比较。
The steady-state flow structure, temperature and heat transfer in a square enclosure heated and cooled on opposite vertical walls and containing cold water near its density maximum are investigated numerically. Interpretation of the results hinges upon a dimensionless density distribution parameter which fixes the orientation of the hot and cold wall temperatures with respect to the extremum temperature and also serves to characterize the distribution of the buoyancy force in the enclosure. Multicellular flow structures are observed for certain ranges of the density distribution parameter independent of the value of Rayleigh number (103⩽Ra⩽106). The effect of the density distribution parameter on cross-cavity heat transfer is found to be substantial and is discussed in the context of the changing flow structure. Comparisons with previous studies in the literature are made.