Heat Transfer Enhancement in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators on One Sidewall

WANG Ling; CHEN Qiuyang; ZHOU Yangeng; WANG Qiuwang; HUANG Yanping; XIAO Zejun

Volume 26 Issue 4

Aug. 2005

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Article Navigation > Nuclear Power Engineering > 2005 > 26(4): 344-347,359

WANG Ling, CHEN Qiuyang, ZHOU Yangeng, WANG Qiuwang, HUANG Yanping, XIAO Zejun. Heat Transfer Enhancement in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators on One Sidewall[J]. Nuclear Power Engineering, 2005, 26(4): 344-347,359.

Citation:

WANG Ling, CHEN Qiuyang, ZHOU Yangeng, WANG Qiuwang, HUANG Yanping, XIAO Zejun. Heat Transfer Enhancement in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators on One Sidewall[J]. Nuclear Power Engineering, 2005, 26(4): 344-347,359.

Citation:

WANG Ling, CHEN Qiuyang, ZHOU Yangeng, WANG Qiuwang, HUANG Yanping, XIAO Zejun. Heat Transfer Enhancement in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators on One Sidewall[J]. Nuclear Power Engineering, 2005, 26(4): 344-347,359.

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Heat Transfer Enhancement in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators on One Sidewall

1. ⒈State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, China;
2. School of Civil Engineering and City Construction, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China;
3. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2005-02-25
Rev Recd Date: 2005-05-27

Available Online: 2025-07-29

Publish Date: 2005-08-15

Abstract

Abstract

Repeated ribs mounted on sidewall in channels are often used to enhance convective heat transfer. In this paper, the heat transfer and fluid flow in a rectangular narrow channel with periodicallymounted Longitudinal Vortex Generators （LVGs） on one sidewall was investigated experimentally in the range of Re=3×10³ and Re=2×10⁴. The effect of flow direction on the heat performance was also con-ducted. It was found that the LVGs are able to greatly improve the comprehensive heat transfer performance. And under three kinds of comparison criterion （Identical Mass Flow-IMF, Identical Pressure Drop-IPD, Iden- tical Pumping Power-IPP）, the heat transfer performance of parallel-flow was a little better than that of counter-flow.
- Longitudinal vortex generators,
- Periodically,
- Heat Transfer enhancement