鉛直に配列した水平二円管による水の冷却と凍結 : (円管の直径と間隔の影響)

概要

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When water is cooled and frozen around two horizontal cooling tubes placed in vertical arrangements in an enclosure, natural convection with density inversion is caused. This natural convection has both downward and upward flow, and these flows interfere with each other between the two cooling tubes. The process of cooling and freezing the water is much influenced by this flow interference. We studied this influence by experimental visualization and numerical calculation, and already reported on the basics of this influence. In this paper, we discuss the effect of the tube diameter and the separation distance on the process of cooling and freezing the water with this flow interference. The tube diameter and the separation distance have the great effects on the development of the density inversion flow, the release of supercooling and the heat transfer characteristics.
一般社団法人日本機械学会の論文
2000-09-25