Modeling and Measurements of Heat Transfer Phenomena in Two-Phase PbSn Alloy Solidification in an External Magnetic Field  

作　　者：P.A.Nikrityuk K.Eckert R.Grundmann B. Willers S. Eckert 

机构地区：[1]Institute for Aerospace Engineering, Dresden University of Technology, D-01062 Dresden, Germany,Institute for Aerospace Engineering, Dresden University of Technology, D-01062 Dresden, Germany,Institute for Aerospace Engineering, Dresden University of Technology, D-01062 Dresden, Germany,Research Center Rossendorf, P.O. Box 510119, D-01314 Dresden, Germany,Research Center Rossendorf, P.O. Box 510119, D-01314 Dresden, Germany

出　　处：《Journal of Thermal Science》2003年第4期357-362,共6页热科学学报（英文版）

摘　　要：The main aim of this work is to study numerically the influence of an external magnetic field on the solidification processes of two-component materials. Based on the continuum model of two-phase flow a mathematical model for the directional solidification of a binary alloy in a magnetic field is presented. The model includes mass, momentum, energy and species mass conservation equations written in compressible form and additional relationships describing the temperature-solute coupling. The geometry under study is a cylindrical mold with adiabatic walls and cooled bottom. The macroscale transport in the solidification of alloys is governed by the progress of the two-phase mushy zone, which is treated by means of a porous medium approach. The volume fraction of liquid and solid phases, respectively, is calculated from a 2D approximation of the phase diagram. The results of calculation are compared with experimental data.

关 键 词：SOLIDIFICATION MEASUREMENTS mushy zone Lorentz force rotating magnetic field. 

分 类 号：TG111.4[金属学及工艺—物理冶金]