摘要
针对目前弓形折流板管壳式换热器采用分布阻力、容积多孔度等概念来计算壳程流体流动的方法 ,根据纵流壳程换热器的结构特点和流动特点 ,探讨了大型纵流壳程换热器数值模拟的简化计算问题 ,提出了几何原型周期段模型简化计算法和四管模型简化计算法 ,以解决大型纵流壳程换热器数值模拟问题 .并应用本文提出的简化计算法 ,应用通用CFD软件FLUENT对纵流壳程换热器不同结构参数时的流动与传热进行了数值模拟 ,得到了换热器流场与温度场的细观信息 。
Applied by distribution resistance and volume porous for calculation of fluid flow and heat transfer of the shell and tube heat exchanger,based on the floating characteristic and the structural characteristic of heat exchanger with longitudinal flow of shellside(HELFS), this paper discusses simplification method problem for numerical simulation of large HELFS, and pus forward the geometry prototype period region model and four tube model calculation method, to solve simulation problem of large HELFS. Further ,by using those simplification method and FLUENT program, discussed the influence of various structure parameters on the behavior of heat transfer and fluid flow in HELFS, the characteristics of fluid flow and heat transfer, the distribution of fluid flow fields and temperature fields, and the details information of fluid flow and heat transfer in HELFS are obtained.All of them provide the required information for knowing condition of fluid flow and heat transfer and the foundation to improve design of HELFS.
出处
《郑州大学学报（工学版）》
CAS
2002年第3期13-18,共6页
Journal of Zhengzhou University（Engineering Science）
基金
河南省高校青年骨干教师基金资助项目
关键词
三维流动
传热
数值模拟
纵流壳程换热器
计算流体动力学
heat exchanger with longitudinal flow of shellside
geometry prototype period region model
four tube model
CFD
