Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins
The micro-channel heat sink (MCHS) is an excellent choice due to its exceptional cooling capabilities, surpassing those of its competitors. In this research paper, a computational fluid dynamics analysis was performed to investigate the laminar flow and heat transfer characteristics of five differen...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/10/1818 |
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| author | Heng Zhao Honghua Ma Xiang Yan Huaqing Yu Yongjun Xiao Xiao Xiao Hui Liu |
| author_facet | Heng Zhao Honghua Ma Xiang Yan Huaqing Yu Yongjun Xiao Xiao Xiao Hui Liu |
| author_sort | Heng Zhao |
| collection | DOAJ |
| description | The micro-channel heat sink (MCHS) is an excellent choice due to its exceptional cooling capabilities, surpassing those of its competitors. In this research paper, a computational fluid dynamics analysis was performed to investigate the laminar flow and heat transfer characteristics of five different configurations of a variable geometry rectangular fin. The study utilized a water-cooled smooth MCHS as the basis. The results indicate that the micro-channel heat sink with a variable geometry rectangular fin has better heat dissipation capacity than a straight-type micro-channel heat sink, but at the same time, it has larger pressure loss. Based on the analysis of various rectangular fin shapes and Reynolds numbers in this study, the micro-channel heat sink with rectangular fins exhibits Nusselt numbers and friction factors that are 1.40–2.02 and 2.64–4.33 times higher, respectively, compared to the smooth heat sink. This significant improvement in performance results in performance evaluation criteria ranging from 1.23–1.95. Further, it is found that at a relatively small Reynolds number, the micro-channel heat sink with a variable geometry rectangular fin has obvious advantages in terms of overall cooling performance. Meanwhile, this advantage will decrease when the Reynolds number is relatively large. |
| first_indexed | 2024-03-10T21:03:05Z |
| format | Article |
| id | doaj.art-eb205c19d9d343af80e342a12b9a6f66 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T21:03:05Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
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| series | Micromachines |
| spelling | doaj.art-eb205c19d9d343af80e342a12b9a6f662023-11-19T17:23:15ZengMDPI AGMicromachines2072-666X2023-09-011410181810.3390/mi14101818Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular FinsHeng Zhao0Honghua Ma1Xiang Yan2Huaqing Yu3Yongjun Xiao4Xiao Xiao5Hui Liu6School of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, ChinaWuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, ChinaSchool of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, ChinaSchool of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, ChinaInstitute of Engineering and Technology, Hubei University of Science and Technology, Xianning 437100, ChinaSchool of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, ChinaThe micro-channel heat sink (MCHS) is an excellent choice due to its exceptional cooling capabilities, surpassing those of its competitors. In this research paper, a computational fluid dynamics analysis was performed to investigate the laminar flow and heat transfer characteristics of five different configurations of a variable geometry rectangular fin. The study utilized a water-cooled smooth MCHS as the basis. The results indicate that the micro-channel heat sink with a variable geometry rectangular fin has better heat dissipation capacity than a straight-type micro-channel heat sink, but at the same time, it has larger pressure loss. Based on the analysis of various rectangular fin shapes and Reynolds numbers in this study, the micro-channel heat sink with rectangular fins exhibits Nusselt numbers and friction factors that are 1.40–2.02 and 2.64–4.33 times higher, respectively, compared to the smooth heat sink. This significant improvement in performance results in performance evaluation criteria ranging from 1.23–1.95. Further, it is found that at a relatively small Reynolds number, the micro-channel heat sink with a variable geometry rectangular fin has obvious advantages in terms of overall cooling performance. Meanwhile, this advantage will decrease when the Reynolds number is relatively large.https://www.mdpi.com/2072-666X/14/10/1818micro-channel heat sink (MCHS)laminar flowcomputational fluid dynamics |
| spellingShingle | Heng Zhao Honghua Ma Xiang Yan Huaqing Yu Yongjun Xiao Xiao Xiao Hui Liu Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins Micromachines micro-channel heat sink (MCHS) laminar flow computational fluid dynamics |
| title | Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins |
| title_full | Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins |
| title_fullStr | Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins |
| title_full_unstemmed | Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins |
| title_short | Investigation of Hydrothermal Performance in Micro-Channel Heat Sink with Periodic Rectangular Fins |
| title_sort | investigation of hydrothermal performance in micro channel heat sink with periodic rectangular fins |
| topic | micro-channel heat sink (MCHS) laminar flow computational fluid dynamics |
| url | https://www.mdpi.com/2072-666X/14/10/1818 |
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