太原理工大学学报2017，Vol.48Issue(2)：169-173,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.02.005
内插矩形翼纵向涡发生器的强化传热圆管性能分析
Analysis of Performance of Heat Transfer Enhanced Circular Tube with Rectangular Wings Longitudinal Vortex Generator
摘要
Abstract
The heat transfer,resistance performance and the value of performance evaluation criterion (PEC) of the circular tube with rectangle wings longitudinal vortex generators at different wing angle (α) were studied by 3D numerical simulation.The mechanisms of flow and heat transfer were analyzed.The results show that the Nusselt numbers Nu and the friction factors f of the enhanced circular tube are higher than those of the plain tube in the studied range.As compared with the plain tube,the Nusselt numbers Nu of the enhanced circular tube is increased by 68 ％ ～ 147.8 ％ and the friction factor f of the enhanced circular tube is increased by 159.7％ ～ 1 437.9％;The Nusselt number Nu and the friction factor f are consistently increased while the value of performance evaluation criterion PEC is consistently decreased with increasing wing angle.关键词
矩形翼/强化传热/流动/数值模拟Key words
rectangular wings/heat transfer enhancement/fluid flow/numerical simulation分类
能源科技引用本文复制引用
雷聪,雷勇刚,宋翀芳,王飞..内插矩形翼纵向涡发生器的强化传热圆管性能分析[J].太原理工大学学报,2017,48(2):169-173,5.基金项目
国家自然科学基金资助项目:基于纵向涡的倾斜折流片支撑多管束受限外流的传热强化机理和热流传输规律研究(U1510136) （U1510136）
