腰槽开孔矩形翼涡流发生器的传热和流阻特性

doi:10.16085/j.issn.1000-6613.2017.06.008

化工进展 ›› 2017, Vol. 36 ›› Issue (06): 2023-2030.DOI: 10.16085/j.issn.1000-6613.2017.06.008

腰槽开孔矩形翼涡流发生器的传热和流阻特性

徐志明, 熊骞, 王景涛, 韩志敏

东北电力大学能源与动力工程学院, 吉林吉林 132012

收稿日期:2016-10-28 修回日期:2017-02-04 出版日期:2017-06-05 发布日期:2017-06-05
通讯作者: 熊骞
作者简介:徐志明(1959—),男,教授,博士生导师,主要从事节能理论与技术、换热设备的污垢与对策和强化换热的研究。E-mail:xuzm@mail.nedu.edu.cn。
基金资助:
国家自然科学基金项目（51476025）。

Experimental study of heat transfer and flow resistance characteristics of rectangular wing vortex generator with waist groove

XU Zhiming, XIONG Qian, WANG Jingtao, HAN Zhiming

School of Energy and Power Engineering, Northeast Dianli University, Jilin 132012, Jilin, China

Received:2016-10-28 Revised:2017-02-04 Online:2017-06-05 Published:2017-06-05

摘要/Abstract

摘要： 涡流发生器是一种广泛应用的被动强化传热元件，在换热器的换热壁面上以阵列形式布置。涡流发生器靠诱导和产生涡旋来削减或破坏壁面边界层从而达到强化换热。本文对安装腰槽开孔矩形翼涡流发生器和未冲孔矩形翼涡流发生器以及圆孔矩形翼涡流发生器的矩形通道进行了传热和流阻特性的实验研究。实验雷诺数范围为Re=1000～4000。结果表明：在相同雷诺数下，安装有腰槽开孔矩形翼涡流发生器的矩形通道的换热效果和流阻特性优于未冲孔矩形翼涡流发生器和圆孔矩形翼涡流发生器，腰槽开孔矩形翼涡流发生器综合换热性能最好。涡流发生器布置攻角和纵向间距对腰槽开孔矩形翼涡流发生器传热和流阻有较大影响，对比不同涡流发生器布置攻角和纵向间距，得出90°攻角布置和纵向间距为80mm布置的腰槽开孔矩形翼涡流发生器总和换热性能最好。

关键词: 腰槽开孔矩形翼涡流发生器, 强化换热, 流阻, 攻角, 纵向间距

Abstract: Vortex generator is a kind of element for passive heat transfer enhancement,usually on heat transfer surface of heat exchangers in the form of array layout. Vortex generators enhance heat transfer by inducing vortice to thin or destroy the wall boundary layer. The characteristics of heat transfer and flow resistance equipped with the rectangular wing vortex generators with waist groove,the rectangular wing vortex generator and the rectangular wing vortex generator with a hole in a rectangular channel was experimentally studied in this paper. Experimental Reynods number,Re,ranges from 1000 to 4000. The results showed that at the same Reynods number the rectangular wing vortex generators with waist groove have the best characteristics of heat transfer and flow resistance in a rectangular channel compared to the rectangular wing vortex generator and rectangular wing vortex generator with a hole. The attack angle and longitudinal distance of vortex generator have influence on heat transfer and flow resistance. It was found that the best performance of comprehensive heat transfer attack angle was 90° and the best performance of comprehensive heat longitudinal distance was 80mm.

Key words: rectangular wing vortex generator with waist groove, heat transfer enhacement, flow resistance, attack angle, longitudinal distance

中图分类号:

TK124

徐志明, 熊骞, 王景涛, 韩志敏. 腰槽开孔矩形翼涡流发生器的传热和流阻特性[J]. 化工进展, 2017, 36(06): 2023-2030.

XU Zhiming, XIONG Qian, WANG Jingtao, HAN Zhiming. Experimental study of heat transfer and flow resistance characteristics of rectangular wing vortex generator with waist groove[J]. Chemical Industry and Engineering Progress, 2017, 36(06): 2023-2030.

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腰槽开孔矩形翼涡流发生器的传热和流阻特性

Experimental study of heat transfer and flow resistance characteristics of rectangular wing vortex generator with waist groove

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