材料工程Issue(3)：17-21,5.
确定金属型铸造界面传热系数方法的研究
Methodological Research for Defining Interface Heat Transfer Coefficient in Metal Mould Casting
摘要
Abstract
In the process of numerical simulation of casting solidification, the interface heat transfer coefficient was traditionally used to reflect the influence of the heat resistance. Among several factors to make the precision more precisely, this coefficient played an important role in affecting the precision. In order to determined a higher precision, the ANSYS software served as a platform. Basing on the experiment of temperature measurement, the 0. 618 method was adopted to select the coefficient, considering the different meet places between the cast and the mould, and the effects made by different interface heat transfer coefficient. By using the least-squares method, a mathematic mode of the realization between time and the interface heat transfer coefficient was set up in order to simulate temperature fields of metal mould casting solidification. And then, a conclusion that a reasonable temperature distribution can be made by comparing the simulation result with the testing data. The result provides a method to get the accurate interface heat transfer coefficient.关键词
温度场/界面传热系数/0.618法/最小二乘法Key words
temperature filed/ the interface heat transfer coefficient/ 0. 618 method/ least-squares method分类
矿业与冶金引用本文复制引用
陈玲,宇文晅晅,钟蜀津,解锦婷..确定金属型铸造界面传热系数方法的研究[J].材料工程,2012,(3):17-21,5.基金项目
天津市高等学校科技发展基金项目(2006BA09) （2006BA09）
天津市应用基础与前沿技术研究计划(09JCZDJC23500) （09JCZDJC23500）
