中國有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 13 No. 5 October 2003 |
Equivalent heat transfer coefficient at casting/Cu mould interface and temperature field simulation
LIU Yuan(劉 源)1,2, GUO Jing-jie(郭景杰)1,
JIA Jun(賈均)1, LI Yan-xiang(李言祥)2，
SU Yan-qing(蘇彥慶)1, DING Hong-sheng(丁宏升)1
JIA Jun(賈均)1, LI Yan-xiang(李言祥)2，
SU Yan-qing(蘇彥慶)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
