卧式半圆柱型涡流发生器的传热与阻力特性及场协同理论分析

doi:10.3901/JME.2016.02.166

机械工程学报 ›› 2016, Vol. 52 ›› Issue (2): 166-172.doi: 10.3901/JME.2016.02.166

• 可再生能源与工程热物理 • 上一篇下一篇

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卧式半圆柱型涡流发生器的传热与阻力特性及场协同理论分析

徐志明, 韩志敏, 王景涛, 白文玉, 张一龙

东北电力大学能源与动力工程学院吉林 132012

收稿日期:2015-04-01 修回日期:2015-10-20 出版日期:2016-01-15 发布日期:2016-01-15
通讯作者: 韩志敏，男，1988年出生。主要研究方向为换热设备的污垢与对策和强化换热。 E-mail：449130182@qq.com
作者简介:徐志明，男，1959年出生，教授，博士研究生导师。主要研究方向为节能理论与技术、换热设备的污垢与对策和强化换热。 E-mail：xuzm@mail.nedu.edu.cn
基金资助:
国家自然科学基金资助项目(51476025)

Heat Transfer and Flow Resistance Characteristics of the Horizontal Semi-cylindrical Vortex Generators and Analysis with Field Synergy Theory

XU Zhiming, HAN Zhimin, WANG Jingtao, BAI Wenyu, ZHANG Yilong

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

Received:2015-04-01 Revised:2015-10-20 Online:2016-01-15 Published:2016-01-15

摘要/Abstract

摘要： 为研究卧式半圆柱型涡流发生器的特性，通过数值模拟方法对安装有卧式半圆柱型涡流发生器的矩形通道进行了传热和流阻特性的研究。结果表明：在相同雷诺数Re下，安装有卧式半圆柱型涡流发生器的矩形通道的换热效果明显优于矩形光滑通道，但阻力系数也均大于矩形光滑通道。对比综合性能指标表明，6/8H楞长处的综合特性PEC值最大。通过对场协同理论分析得出，矩形光滑通道和四种不同楞长的卧式半圆柱型涡流发生器的协同数Fc均随着雷诺数Re的增大而减小，而且其变化趋势也越来越平缓，最终逐渐趋近于定值。相同雷诺数Re下，楞长为6/8H时的协同数Fc最大。

关键词: 场协同数, 流动阻力, 强化传热, 涡流发生器, 综合特性系数

Abstract: In order to study the characteristics of horizontal semi-cylindrical vortex generator, through the numerical simulation method of horizontal rectangular channel installed semi-cylindrical vortex generators are studied heat transfer and flow resistance characteristics. The results show that：Under the same Reynolds number Re，horizontal rectangular channel installed semi-cylindrical vortex generator heat transfer better than rectangular smooth passage，but the drag coefficient is not less than smooth passage. Compare the comprehensive performance indicators，6/8H stare blankly strengths the comprehensive features of PEC value maximum. Through analysis of field synergy theory，collaborative number Fc rectangle smooth passage and four different flute length of the horizontal semi-cylindrical vortex generators are decreased with the increase of Reynolds number Re，and the change tendency is becoming more and more gentle，eventually gradually tend to be constant value. Under the same Reynolds number Re，long stare blankly is 6/8H coordination number of Fc is the largest.

Key words: field synergy theory, flow resistance, heat transfer, overall coefficient of performance, vortex generator

中图分类号:

TK124

徐志明, 韩志敏, 王景涛, 白文玉, 张一龙. 卧式半圆柱型涡流发生器的传热与阻力特性及场协同理论分析[J]. 机械工程学报, 2016, 52(2): 166-172.

XU Zhiming, HAN Zhimin, WANG Jingtao, BAI Wenyu, ZHANG Yilong. Heat Transfer and Flow Resistance Characteristics of the Horizontal Semi-cylindrical Vortex Generators and Analysis with Field Synergy Theory[J]. Journal of Mechanical Engineering, 2016, 52(2): 166-172.

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卧式半圆柱型涡流发生器的传热与阻力特性及场协同理论分析

Heat Transfer and Flow Resistance Characteristics of the Horizontal Semi-cylindrical Vortex Generators and Analysis with Field Synergy Theory

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