| 水平管外蒸气轴向库特流动时的凝结换热 |
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| 引用本文： | 李维仲,沈胜强.水平管外蒸气轴向库特流动时的凝结换热[J].大连理工大学学报,1997,37(4):431-434. |
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| 作者姓名： | 李维仲 沈胜强 |
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| 作者单位： | 大连理工大学动力工程系 |
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| 基金项目： | 中国石油化工总公司发展部资助 |
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| 摘 要： | 根据蒸气在管束间和套管环流道内流动特性，建立了适应该种流动凝结换热的物理及数学模型；通过数值求解，得到了蒸气流束对流膜厚度的影响区域及其随雷诺数，雅可比数及普朗特数的变化关系，表明这种流动形式强化了凝结换热。
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| 关 键 词： | 轴向流动 换热 水平管 凝结换热 库特流 |
Condensation heat transfer of steam in Coutte flow outside horizontal tube |
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| Li Weizhong,Shen Shengqiang.Condensation heat transfer of steam in Coutte flow outside horizontal tube[J].Journal of Dalian University of Technology,1997,37(4):431-434. |
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| Authors: | Li Weizhong Shen Shengqiang |
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| Abstract: | Based on the characteristics of steam flowing in the duct along tubes sheet and in the annular tunnel of casing tube, a physical and mathematical model is built up to describe condensation heat transfer process of this flow pattern. By means of the numerical solution, the influence area of steam velocity on the thickness of condensation film as well as its relation with Re, Ja and Pr are presented. The results reveal that this flow pattern could enhance condensation heat transfer. |
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| Keywords: | axial flow film condensation heat transfer/horizontal tube |
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