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Study on the 3-Dimensional Flow Characteristics in Compact Heat Exchangers

机译:紧凑型换热器三维流动特性研究

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In this research,three-dimensional flows in the tube banks are anal-ized containing the wall effect by the fin. A three-dimensional Navier-Stokes Equation was used in the curvilinear body-fitted coordinate system with standard κ―ε model for better analysis of recirculation flow. By varying the distance between tubes(pitch length, L/D), tube configuration, and Reynolds number, the changes of flow properties like velocity, pressure are analized to understand the flow characteristics around the tube bank. Also the typical characteristics on the flow for the different parameters are discussed.
机译:在这项研究中,管束中的三维流动被分析,包含了鳍片的壁效应。在具有标准κ-ε模型的曲线形人体坐标系中,使用了三维Navier-Stokes方程,以更好地分析再循环流。通过改变管子之间的距离(节距长度,L / D),管子配置和雷诺数,可以分析流速,压力等流动特性的变化,以了解管束周围的流动特性。还讨论了不同参数下流量的典型特征。

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