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首页> 外文期刊>International Journal of Heat and Mass Transfer >An experimental and theoretical study of solidification in a free-convection flow inside a vertical annular enclosure
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An experimental and theoretical study of solidification in a free-convection flow inside a vertical annular enclosure

机译：垂直环形罩内自由对流中凝固的实验和理论研究

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摘要

The natural convection and solidification in an annular enclosure has been studied experimentally and theoretically. Here the inner cylinder of the annular enclosure was cooled below the solidification temperature of the water, while the outer cylinder was kept on a uniform temperature well above 0 ℃. The problem of the unsteady growth of the ice-layer on the inner cold cylindrical surface is studied theoretically and an approximate solution has been obtained for the quasi-steady development of the ice-layer thickness. In addition, it has been found that the influence of the contact layer between the frozen layer and the cold surface is of significant importance for the solidification process. Results are presented and compared between the experimental and the analytical investigation.
机译：已经通过实验和理论研究了环形罩中的自然对流和凝固。在这里，环形外壳的内筒被冷却到水的凝固温度以下，而外筒则保持在均匀的温度，远高于0℃。从理论上研究了内冷圆柱面上冰层不稳定增长的问题，并为冰层厚度的准稳态发展获得了近似解。另外，已经发现，冷冻层和冷表面之间的接触层的影响对于固化过程是非常重要的。给出结果并在实验研究和分析研究之间进行比较。

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