树状小通道内汽液两相流换热特性研究  

Heat Transfer Characteristics Study of Vapor Liquid Two Phase Flow in a Small Tree shaped Channel

作　　者：刘湘云 罗志高[1] 赵永豪 蒙劭洋 赵诗诗 LIU Xiangyun;LUO Zhigao;ZHAO Yonghao;MENG Shaoyang;ZHAO Shishi(School of Mechanical and Electrical Engineering,Guangzhou city construction college,Guangzhou,510925;School of material and energy,Guangdong university of technology,Guangzhou,510006)

机构地区：[1]广州城建职业学院机电工程学院,广州510925 [2]广东工业大学材料与能源学院,广州510006

出　　处：《制冷》2024年第4期45-48,共4页Refrigeration

基　　金：广州经济技术开发区国际科技合作项目(编号:2021GH14)资助。

摘　　要：随着微电子电路集成技术的发展,为了给微小电路板或者芯片散热,小尺度换热器的研究得到广泛关注。本文采用实验的方法对30°,45°和90°三种不同的树型小通道内部流场的沸腾换热特性进行了研究分析,实验工质采用纯净水。结果表明,在相同的雷诺数下,通道内工质的出口温度以及通道的阻力系数和换热系数都随着分形角度的扩大而上升。With the development of microelectronic circuit integration technology,microscale heat transfer has been paid more attention.Experimental methods is used to study and analyze the boiling heat transfer characteristics of the internal flow field in three tree-shaped small channels(30°,45°,and 90°).Pure water is used as the experimental working fluid.The results indicate that at the same Reynolds number,the outlet temperature of the working fluid in the channel,as well as the resistance coefficient and heat transfer coefficient of the channel,increase with the expansion of the fractal angle.

关 键 词：树状 小通道 分形 两相流 

分 类 号：TK17[动力工程及工程热物理—热能工程]