Effect of a Vibrating Blade in a Channel on the Heat Transfer Performance

被引：2
|
作者：
Yuan, Xinrui [1 ]
Lan, Chenyang [1 ]
Hu, Jinqi [1 ]
Fan, Yuanhong [1 ]
Min, Chunhua [1 ]
机构：
[1] Hebei Univ Technol, Sch Energy & Environm Engn, Tianjin 300401, Peoples R China
来源：
ENERGIES | 2023年 / 16卷 / 07期
基金：
中国国家自然科学基金;
关键词：
vibrating blade; chaotic convection; heat transfer enhancement; DUAL PIEZOELECTRIC FANS; CHAOTIC ADVECTION; TRANSFER ENHANCEMENT; FLOW CHARACTERISTICS; CYLINDRICAL SURFACE; NATURAL-CONVECTION; TRANSITION; NANOFLUIDS; ROUTES;
D O I：
10.3390/en16073076
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A vibrating blade was arranged in a channel to enhance heat transfer. The effects of the frequency and amplitude of the blade on the heat transfer characteristics were numerically researched. The phase space reconstruction and maximum Lyapunov index were used to analyze the transition path and degree of chaos. The results show that the vibrating blade can generate chaos; thus, the heat transfer is enhanced. The convective heat transfer performance is positively correlated with the degree of chaos. In addition, when the frequency is 10 Hz, and the inlet velocity is 0.5 m s(-1), the heat transfer can be improved by 16%. When the maximum amplitude of the blade is 8 mm and the inlet velocity is 0.8 m s(-1), the heat transfer can be improved by 15%.
引用
收藏
页数：17
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