窄缝流道内的流动与换热机理及关键问题  

Flow and Heat Transfer Mechanism and Key Issues in a Narrow Channel

作　　者：徐建军[1] 陈炳德[1] 王小军[1] 

机构地区：[1]中国核动力研究设计院空泡物理和自然循环国家级重点实验实,成都610041

出　　处：《核动力工程》2008年第3期9-13,共5页Nuclear Power Engineering

摘　　要：从窄缝流道内流场和温度场测量技术及其问题、汽泡核化现象和流型、压降、传热特性和临界热流密度5个方面介绍了窄缝流道内流动和换热机理的研究现状及涉及的关键问题,针对目前的研究现状以及所存在的问题,提出了窄缝流道内流动和换热机理的研究方向。The compact heat transfer device is widely applied in the engineering technology, which contributed to the development of flow and heat transfer mechanism in a narrow channel. The development of flow and heat transfer mechanism and its related key issues are presented, including measurement methods and related issues on flow and temperature field, nucleate phenomenon and flow pattern, pressure drop, heat transfer characteristic and critical heat flux which is very concerned in the engineering. Aiming at the research actuality and issues on the flow and heat transfer mechanism in a narrow channel at present, the research directions on the flow and heat transfer mechanism in a narrow channel are suggested.

关 键 词：流场 温度场 流型 压降 临界热流密度 窄缝 

分 类 号：TK124[动力工程及工程热物理—工程热物理]