Equivalent heat transfer coefficient at casting/Cu mould interface and temperature field simulation
(1. School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, China;
2. Department of Mechanical Engineering,
Tsinghua University, Beijing 100084, China)
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