间隙漏流对换垫器壳侧流场的影响研究  

Study on the Influence of Leakage in Shell Side of Heat Exchanger

作　　者：董其伍[1] 林苏奔[1] 刘敏珊[1] 王永庆[1] 谢建[1] 

机构地区：[1]郑州大学热能工程研究中心,河南郑州450002

出　　处：《郑州大学学报（工学版）》2009年第3期97-100,共4页Journal of Zhengzhou University（Engineering Science）

摘　　要：考虑管壳式换热器壳侧筒体与折流板以及折流板与管子之间的间隙漏流,通过优化网格生成方法,对所建立的三维实体模型进行网格划分,用CFD软件FLUENT进行数值模拟,研究壳侧流体的流动与传热特性.经与实验对比,模拟结果与实验结果符合良好,两者压降的最大误差仅为10.4%,表明笔者所建立的模型具有较高的可靠性与准确性.笔者的建模方法及所得结果为评价现有管壳式换热器的性能提供了一定的参考价值.In this paper,a three-dimensional numerical model is presented to simulate the characteristics of fluid flow and heat transfer in shellside of shell-and-tube heat exchanger by using CFD code FLUENT software,in which the baffle-shell leakage and the baffle-tube leakage are considered.compared with the experiment,it can be found that the simulated results agree with the experimental results well,the maximum relative error of the pressure drop is only 10.4%,and the model reliability is validated.The modeling m...

关 键 词：管壳式换热器 CFD 数值模拟 间隙漏流 流动与换热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]