| 饱和蒸汽在高速过冷水射流外凝结换热的数值模拟 |
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| 引用本文： | 刘继平,严俊杰,林万超,陈国慧,邢秦安.饱和蒸汽在高速过冷水射流外凝结换热的数值模拟[J].西安交通大学学报,2001,35(5):490-493. |
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| 作者姓名： | 刘继平 严俊杰 林万超 陈国慧 邢秦安 |
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| 作者单位： | 西安交通大学能源与动力工程学院, |
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| 基金项目： | 国家“九七三”重点基础研究发展规划资助项目(G2000026303)． |
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| 摘 要： | 采用数值计算的方法，研究了高速过冷水射流外饱和蒸汽的凝结换热过程，在研究中，采用标准的k-ε紊流计算模型，两相界面上采用了凝结换热边界条件，并考虑了蒸汽凝结造成的相界面处的法向速度，计算表明，凝结换热强度完全由高速过冷水充中的紊流运动决定，其平均对流换热系数可以达到1．0MW／（m2,℃）,与实验结果相符合。
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| 关 键 词： | 凝结换热 数值模拟 紊流 饱和蒸汽 激波升压 汽液两相流 |
| 文章编号： | 0253-987X（2001）05-0490-04 |
| 修稿时间： | 2000年9月19日 |
Numerical Simulation on
Condensation Heat Transfer of the Satured Steam Around a High Speed Sub-Cooling Water Jet |
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| LIU Jiping,YAN Junjie,Lin Wanchao,Chen Guohui,Xing Qin′an.Numerical Simulation on
Condensation Heat Transfer of the Satured Steam Around a High Speed Sub-Cooling Water Jet[J].Journal of Xi'an Jiaotong University,2001,35(5):490-493. |
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| Authors: | LIU Jiping YAN Junjie Lin Wanchao Chen Guohui Xing Qin′an |
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| Abstract: | Numerical simulation has been performed on the condensation heat transfer of the satured steam around high speed sub-cooled water jet. The standard turbulent model is used. The condensation boundary condition is used in the two-phase boundary. The normal mass flux through the two-phase boundary caused by the condensation of steam was considered. The convective heat transfer coefficient is about 1.0 Mega-Watt per square meter per degree, which agrees well with experimented data, and is mainly determined by the turbulent motion in the jet. |
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| Keywords: | condensation heat transfer numerical simulation turbulence |
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