Physical quantity synergy in laminar flow field of convective heat transfer and analysis of heat transfer enhancement

被引：40

作者：

Liu Wei ^{[1
]}

Liu ZhiChun ^{[1
]}

Guo ZengYuan ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China

[2] Tsinghua Univ, Sch Aerosp, Beijing 100084, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2009年 / 54卷 / 19期

基金：

中国国家自然科学基金;

关键词：

physical quantity synergy; heat transfer enhancement; laminar flow; convective heat transfer; numerical verification; NUMERICAL-SIMULATION; FIN SURFACE; PRINCIPLE; ARRANGEMENT; TUBE;

D O I：

10.1007/s11434-009-0223-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Based on the principle of field synergy for heat transfer enhancement, the concept of physical quantity synergy in the laminar flow field is proposed in the present study according to the physical mechanism of convective heat transfer between fluid and tube wall. The synergy regulation among physical quantities of fluid particle is revealed by establishing formulas reflecting the relation between synergy angles and heat transfer enhancement. The physical nature of enhancing heat transfer and reducing flow resistance, which is directly associated with synergy angles alpha, beta, gamma, phi, theta and psi, is also explained. Besides, the principle of synergy among physical quantities is numerically verified by the calculation of heat transfer and flow in a thin cylinder-interpolated tube, which may guide the optimum design for better heat transfer unit and high-efficiency heat exchanger.

引用

页码：3579 / 3586

页数：8

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