
浏览全部资源
扫码关注微信
山东大学核科学与能源动力学院 济南 250061
王志强,男,教授,山东大学核科学与能源动力学院,13306402833,E-mail:jackywzq@sdu.edu.cn。研究方向:清洁燃烧及污染物排放控制、高效储热/储能技术应用研究、氢能及燃料电池、碳排放控制及资源化利用。Wang Zhiqiang, male, professor, School of Nuclear Science,Energy and Power Engineering, Shandong University, 86-13306402833, E-mail:jackywzq@sdu.edu.cn. . Research fields:clean combustion and pollutant emission control, applied research on high-efficiency thermal/energy storage technologies,hydrogen energy and fuel cells, as well as carbon emission control and resource utilization.
收稿:2026-02-03,
修回:2026-02-28,
录用:2026-04-03,
网络首发:2026-06-04,
移动端阅览
王首元,王志强. 带非均匀肋的逆流微通道的数值研究[J]. 制冷学报,XXXX,XX(XX):1-7.
Wang Shouyuan,Wang Zhiqiang. Numerical Study of Counterflow Microchannels with Non-Uniform Ribs[J]. Journal of Refrigeration,XXXX,XX(XX):1-7.
王首元,王志强. 带非均匀肋的逆流微通道的数值研究[J]. 制冷学报,XXXX,XX(XX):1-7. DOI: 10.12465/issn.0253-4339.20260203002.
Wang Shouyuan,Wang Zhiqiang. Numerical Study of Counterflow Microchannels with Non-Uniform Ribs[J]. Journal of Refrigeration,XXXX,XX(XX):1-7. DOI: 10.12465/issn.0253-4339.20260203002.
本文通过CFD数值模拟方法,研究了逆流微通道散热器高温区形成机理,并提出了“出口顶肋结构”和“通道中顶肋结构”。结果表明:边缘通道进口效应和相邻通道的横向传热是导致“平行四边形”高温区的根本原因。“均匀底肋结构”可以整体强化换热,但依然存在“平行四边形”高温区。“出口顶肋结构”针对边缘通道,在其进口区域弱化换热,出口区域强化换热,改变了“平行四边形”高温区形态,使壁面最大温差降低了33.3%。“中顶肋结构”对通道中部高温区强化换热,使壁面最大温差进一步降低58.3%,且在小流量(1.64 g/s)下可以实现“均匀底肋结构”及“出口顶肋结构”大流量(2 g/s)时相同的壁面平均温度,同时使壁面温差降低64.8%和47.2%,压降降低9.1%和12.0%。
The formation mechanism of high-temperature zones in counterflow microchannel heat sinks was investigated through computational fluid dynamics numerical simulations. The following two novel structures were proposed: an outlet top-rib structure and a channel center top-rib structure. The results showed that the inlet effect of edge channels and transverse heat transfer between adjacent channels were the identified as fundamental causes of the parallelogram-shaped high-temperature zones. The uniform bottom rib structure enhanced overall heat transfer; however, the parallelogram-shaped high-temperature zones still persisted. For edge channels, the outlet top rib structure weakened heat transfer at the inlet region and strengthened heat transfer at the outlet region, thereby modifying the morphology of the parallelogram-shaped high-temperature zones and decreasing the maximum wall temperature difference by 33.3%. The channel center top rib structure enhanced heat transfer in the high-temperature zones at the channel center, further reducing the maximum wall temperature difference by 58.3%. Furthermore, it achieved the same average wall temperature as the uniform bottom-rib structure at a low flow rate (1.64 g/s) and outlet top-rib structure at a large flow rate (2 g/s), while reducingwall temperature difference by 64.8% and 47.2%, and pressure drop by 9.1% and 12.0%, respectively.
钱吉裕 , 王锐 . 电子设备热设计技术概述 [J]. 电子机械工程 , 2025 , 41 ( 5 ): 1 - 26 .
Qian Jiyu , Wang Rui . An overview of thermal design technologies for electronic device [J]. Electro-Mechanical Engineering , 2025 , 41 ( 5 ): 1 - 26 .
Kandlikar S G , Colin S , Peles Y , et al . Heat transfer in microchannels—2012 status and research needs [J]. Journal of Heat Transfer , 2013 , 135 ( 9 ): 091001 .
Alam T , Ansari M M , Kulakrni K S , et al . Optimization of tapered pin fins for enhanced heat transfer in microchannel heat sink [J]. International Journal of Thermal Sciences , 2025 , 214 : 109889 .
Yuan Jin , Deng Ningkang , Qu Yongfeng , et al . A novel center-hybrid pin-fin microchannel heat sink with embedded secondary microchannels for hotspot thermal management [J]. International Journal of Thermal Sciences , 2025 , 207 : 109381 .
Sarvar S , Kabirzadeh P , Miljkovic N . Combining pin-fins and superhydrophobic surfaces to enhance the performance of microchannel heat sinks [J]. International Communications in Heat and Mass Transfer , 2025 , 160 : 108351 .
Ma Xiang , Basem A , Singh P K , et al . Efficient cooling capability in microchannel heat sink reinforced with Y-shaped fins: Based on artificial neural network, genetic algorithm, Pareto front, and numerical simulation [J]. Case Studies in Thermal Engineering , 2025 , 68 : 105936 .
Chen S J , Li Sunwei , Hu Zhenzhong . Fluid flow and heat transfer characteristics of manifold microchannel heat sinks with ribs of different shapes [J]. International Journal of Heat and Mass Transfer , 2025 , 251 : 127300 .
Tikadar A , Oudah S K , Paul T C , et al . Parametric study on thermal and hydraulic characteristics of inter-connected parallel and counter flow mini-channel heat sink [J]. Applied Thermal Engineering , 2019 , 153 : 15 - 28 .
Shah S W A , Jiang Xingchi , Li Y K H , et al . Ultra-stable counter flow diverging minichannel heat sink with integrated microstructures for superior cooling performance [J]. Applied Thermal Engineering , 2025 , 258 : 124560 .
Uddin M W , Sifat N S . Comparative study on hydraulic and thermal characteristics of minichannel heat sink with different secondary channels in parallel and counter flow directions [J]. International Journal of Thermofluids , 2023 , 17 : 100296 .
Khoshvaght-Aliabadi M , Feizabadi A . Profit and performance boost of straight, wavy, and combined minichannel heat sinks by counter-current pattern [J]. Journal of Energy Storage , 2021 , 43 : 103220 .
李昀 , 杨振 , 姚元鹏 , 等 . 流量分配对逆流微通道内流动沸腾影响的研究 [J]. 工程热物理学报 , 2023 , 44 ( 3 ): 712 - 719 .
Li Yun , Yang Zhen , Yao Yuanpeng , et al . Study on the effect of flow distribution on flow boiling in counter-flow microchannels [J]. Journal of Engineering Thermophysics , 2023 , 44 ( 3 ): 712 - 719 .
Khoshvaght-Aliabadi M , Abbaszadeh A , Rashidi M M . Comparison of Co- and counter-current modes of operation for wavy minichannel heat sinks (WMHSs) [J]. International Journal of Thermal Sciences , 2022 , 171 : 107189 .
Wang Dahai , Wang Dongyu , Hong Fangjun , et al . Improved flow boiling performance and temperature uniformity in counter-flow interconnected microchannel heat sink [J]. Applied Thermal Engineering , 2024 , 241 : 122370 .
Wang Dahai , Zhang Chaoyang , Hong Fangjun . Enhanced flow boiling heat transfer performance of counter-flow interconnected microchannels via microporous copper surfaces [J]. International Journal of Heat and Mass Transfer , 2025 , 244 : 126905 .
0
浏览量
4
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621