文献类型：期刊文献

中文题名：纵流壳程换热器数值模拟的应用研究

英文题名：Application Study of Numerical Simulation for Longitudinal Flow of Shell-side Heat Exchanger

作者：王定标[1,2];董其伍[1,2];刘敏珊[1,2];李培宁[1,2]

机构：[1]华东理工大学机械工程学院;[2]郑州工业大学化工学院

年份：1999

卷号：20

期号：2

起止页码：18

中文期刊名：郑州工业大学学报

外文期刊名：Journal of Zhengzhou University of Technology

基金：国家"九五"科技攻关项目

语种：中文

中文关键词：纵流壳程换热器;数值模拟;传热;换热器;流动阻力

外文关键词：longitudinal flow of shell-side heat exchanger; numerical simulation; structure parameters; heat transfer; fluid flow; modulus formulas

摘要：提出采用数值模拟的方法研究纵流壳程换热器，以克服实验研究方式的不足．利用相似理论，确定换热器的数值模拟模型，分析了各结构参数变化对其传热和流动性能的影响，结果表明：单排管间布杆、减小折流栅间距、增大管束长径比均有利于传热，但同时也增大了流动阻力；并利用最小二乘法，进一步回归出纵流壳程换热器层流下的传热和流动阻力的准数关联式．
The numerical simulation method is put forward to research and develop longitudinal flow of shell-side heat exchanger (LFSHE), in order to overcome the shortcoming of the main method of experiment for the shell-and-tube heat exchangers.Numerical simulation model is established by using theory of similarity,the various structure parameters which affect the characteristics of heat transfer and fluidflow in LFSHE are studied,The results show that baffle rods placed in single pitch of tubes,decrement of baffle spacing and increment of length-to-diameter ratio are favorable to heat transfer,but flow resistance is increased at the same time and the modulus formulas of heat transfer and flow resistance in laminar flow have been derived by using least-squares method.Marked advantage of numerical simulation method is showed in the research and development of heat exchangers.