摘要
根据体积平均理论,建立多孔介质中融化相变过程自然对流模型。数值模拟了以石英砂颗粒为骨架、冰为填充相的二维融化过程。数值结果表明,在融化区上部发生较强烈的自然对流,融化界面与水平线倾角随融化时间越来越大。
Based on volume averaging theory, natural convection model for melting phase change in porous media was established. 2-D numerical simulation on porous media packed with quartz sands as skeleton and ice as packed material was conducted. Numerical results show that natural convection is strong on the top of the melting region and angle between melting interface and horizon increases with melting time.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2005年第z1期167-170,共4页
Journal of Engineering Thermophysics
基金
国家杰出青年科学基金资助项目(No
50025617)博士后基金资助项目(No.2004035324)
关键词
多孔介质
相变
自然对流
数值模拟
porous media
phase change
natural convection
numerical simulation
作者简介
卢涛(1975-),男,江西丰城人,博士后,博士,主要从事传热传质研究.
