开口空腔中非稳态自然对流的传热问题  

Unsteady Natural Convection Heat Transfer in Open Cavities

作　　者：林成先[1] 辛明道[1] 

机构地区：[1]重庆大学工程热物理研究所,中国科学院工程热物理研究所

出　　处：《重庆大学学报（自然科学版）》1994年第2期67-71,共5页Journal of Chongqing University

基　　金：国家教委科学基金

摘　　要：对后壁受热的二维开口方形空腔中的非稳态湍流的自然对流传热进行了数值研究。采用低Ｒｅｙｎｏｌｄｓ数ｋ－ε双方程湍流模型，给出并讨论了空腔非稳态流动过程中典型的流型、温度场和开口特性。依据物理本质。The unsteady turbulent natural convecton heat transfer in a back heated two-di-mensional open square cavity is studied numerically. The low-Roynolds-Number k-εturbulencemodel is accepted. Typical flow patterns, temperature fields and opening characteristics for the cari-ty during the unsteady flow evolution is given and discussed.The whole evolution process of cavityheat transfer is divided and analyzed acording to its physical nature.

关 键 词：开口空腔 自然对流 非稳态 传热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]