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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 5    October 2003

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Equivalent heat transfer coefficient at casting/Cu mould interface and temperature field simulation
LIU Yuan(刘 源)1,2, GUO Jing-jie(郭景杰)1,
JIA Jun(贾均)1, LI Yan-xiang(李言祥)2
SU Yan-qing(苏彦庆)1, DING Hong-sheng(丁宏升)1

1. School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, China;
2. Department of Mechanical Engineering,
Tsinghua University, Beijing 100084, China

Abstract:Using the inverse algorithm of heat transfer and the nonlinear estimation method, matching calculated values with measured ones, the interfacial heat transfer coefficient at casting/Cu mould interface was determined.The results show that the interfacial heat transfer coefficient at Al/Cu interface changes in a range of 4.0×103-1.0×105W·m-2·K-1 and its average value is in a range of 5.0×103-7.0×103W·m-2·K-1.

 

Key words: interfacial heat transfer coefficient; inverse problem; nonlinear estimation method

ISSN 1672-7029
CN 43-1423/U

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