摘要
对水平椭圆柱热源依靠其自身重量在相变材料中接触熔化过程进行了研究．根据椭圆作图法则，将其分段圆弧化后，利用Ｎｕｓｓｅｌｔ液膜理论，对接触熔化区的液体传热与运动进行了分析．求得无量纲的热源运动速度与熔化的液体体积，并讨论了椭圆压缩系数对它们的影响．所得结果包含了圆柱热源时的结论．
The close contact melting around a horizontal elliptical cylinder source that melts its way through a phase change material (PCM) under its own weight is studied.According to the rule of plotting ellipse,it is approximately constructed by two circular arcs.The heat transfer and motion of the liquid melted in contact region are analyzed by Nusselt film theory.The dimensionless velocity of the heat source and the melt volume are derived.The effects of compression coefficient are discussed.The results include those for melting around a moving cylindrical heat source.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1998年第4期27-30,共4页
Journal of Shanghai Jiaotong University
基金
国家博士后科学基金
关键词
传热
接触熔化
相变
椭圆柱
heat transfer
contact melting
phase change phenomena
elliptical cylinder
