Heat transfer efficiency enhancement of gyroid heat exchanger based on multidimensional gradient structure design

被引：28
作者：
Chen, Fei [1 ,4 ]
Jiang, Xin [1 ]
Lu, Chenxi [1 ]
Wang, Yangwei [2 ]
Wen, Pin [3 ]
Shen, Qiang [4 ]
机构：
[1] Guangdong Lab, Chaozhou Branch Chem & Chem Engn, Chaozhou 521000, Guangdong, Peoples R China
[2] Natl Key Lab Sci & Technol Mat Shock & Impact, Beijing 100081, Peoples R China
[3] Wuhan Univ Technol, Sch Sci, Hubei Key Lab Theory & Applicat Adv Mat Mech, Wuhan 430070, Peoples R China
[4] Wuhan Univ Technol, Int Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2023年 / 149卷
基金：
中国国家自然科学基金;
关键词：
Thermal properties; Triply periodic minimal surface; Heat exchanger; Heat and mass transfer; Heat transfer coefficient;
D O I：
10.1016/j.icheatmasstransfer.2023.107127
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Nowadays, a bio-inspired heat exchanger incorporating a triply periodic minimal surface (TPMS) structure has demonstrated great potential in the fields of new energy research and aerospace, which necessitates achieving a balance between low volume and high heat transfer efficiency while maintaining low pressure drop. In this paper, the adjustable heat efficiency of the heat exchanger with TPMS in gradient thicknesses is specially designed. A steady-state conjugate heat transfer (CHT) model is coupled with computational fluid dynamics (CFD) analysis. In addition, the temperature profile and velocity streamline are also checked to analyze the fluid flow behavior of the radiator. The results show that the convective heat transfer coefficient of the Gyroid with gradient level set values is 26.02-60.10% higher than that of the uniform Gyroid model, and the pressure drop is decreased by 9.66-18.05%. Both high heat transfer efficiency and low pressure drop can be achieved when the thickness is 0.2-0.3 mm and Re is 100-125. The heat exchangers with a TPMS thickness gradient in the ratio of 2:4:6 demonstrate a remarkable enhancement in overall heat transfer efficiency, achieving a 30.22% improvement compared to those with a TPMS thickness gradient in 6:4:2.
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页数：14
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