Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel

The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was des...
Ausführliche Beschreibung

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Autor*in:	Jingzhi JIANG [verfasserIn] Huafeng LIU [verfasserIn] Jingzhou AN [verfasserIn]

Format:	E-Artikel
Sprache:	Chinesisch

Erschienen:	2023

Schlagwörter:	heat transfer; microchannel; micro device; numerical simulation; heat transfer

Übergeordnetes Werk:	In: Journal of Hebei University of Science and Technology - Hebei University of Science and Technology, 2015, 44(2023), 3, Seite 228-236
Übergeordnetes Werk:	volume:44 ; year:2023 ; number:3 ; pages:228-236

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.7535/hbkd.2023yx03003

Katalog-ID:	DOAJ100719708

Internformat


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520			\|a The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels.
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allfields	10.7535/hbkd.2023yx03003 doi (DE-627)DOAJ100719708 (DE-599)DOAJ6127ae5c92124f9b9502b1f557bb95fd DE-627 ger DE-627 rakwb chi Jingzhi JIANG verfasserin aut Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels. heat transfer; microchannel; micro device; numerical simulation; heat transfer Technology T Huafeng LIU verfasserin aut Jingzhou AN verfasserin aut In Journal of Hebei University of Science and Technology Hebei University of Science and Technology, 2015 44(2023), 3, Seite 228-236 (DE-627)1009842242 10081542 nnns volume:44 year:2023 number:3 pages:228-236 https://doi.org/10.7535/hbkd.2023yx03003 kostenfrei https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd kostenfrei https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue kostenfrei https://doaj.org/toc/1008-1542 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 44 2023 3 228-236
spelling	10.7535/hbkd.2023yx03003 doi (DE-627)DOAJ100719708 (DE-599)DOAJ6127ae5c92124f9b9502b1f557bb95fd DE-627 ger DE-627 rakwb chi Jingzhi JIANG verfasserin aut Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels. heat transfer; microchannel; micro device; numerical simulation; heat transfer Technology T Huafeng LIU verfasserin aut Jingzhou AN verfasserin aut In Journal of Hebei University of Science and Technology Hebei University of Science and Technology, 2015 44(2023), 3, Seite 228-236 (DE-627)1009842242 10081542 nnns volume:44 year:2023 number:3 pages:228-236 https://doi.org/10.7535/hbkd.2023yx03003 kostenfrei https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd kostenfrei https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue kostenfrei https://doaj.org/toc/1008-1542 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 44 2023 3 228-236
allfields_unstemmed	10.7535/hbkd.2023yx03003 doi (DE-627)DOAJ100719708 (DE-599)DOAJ6127ae5c92124f9b9502b1f557bb95fd DE-627 ger DE-627 rakwb chi Jingzhi JIANG verfasserin aut Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels. heat transfer; microchannel; micro device; numerical simulation; heat transfer Technology T Huafeng LIU verfasserin aut Jingzhou AN verfasserin aut In Journal of Hebei University of Science and Technology Hebei University of Science and Technology, 2015 44(2023), 3, Seite 228-236 (DE-627)1009842242 10081542 nnns volume:44 year:2023 number:3 pages:228-236 https://doi.org/10.7535/hbkd.2023yx03003 kostenfrei https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd kostenfrei https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue kostenfrei https://doaj.org/toc/1008-1542 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 44 2023 3 228-236
allfieldsGer	10.7535/hbkd.2023yx03003 doi (DE-627)DOAJ100719708 (DE-599)DOAJ6127ae5c92124f9b9502b1f557bb95fd DE-627 ger DE-627 rakwb chi Jingzhi JIANG verfasserin aut Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels. heat transfer; microchannel; micro device; numerical simulation; heat transfer Technology T Huafeng LIU verfasserin aut Jingzhou AN verfasserin aut In Journal of Hebei University of Science and Technology Hebei University of Science and Technology, 2015 44(2023), 3, Seite 228-236 (DE-627)1009842242 10081542 nnns volume:44 year:2023 number:3 pages:228-236 https://doi.org/10.7535/hbkd.2023yx03003 kostenfrei https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd kostenfrei https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue kostenfrei https://doaj.org/toc/1008-1542 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 44 2023 3 228-236
allfieldsSound	10.7535/hbkd.2023yx03003 doi (DE-627)DOAJ100719708 (DE-599)DOAJ6127ae5c92124f9b9502b1f557bb95fd DE-627 ger DE-627 rakwb chi Jingzhi JIANG verfasserin aut Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels. heat transfer; microchannel; micro device; numerical simulation; heat transfer Technology T Huafeng LIU verfasserin aut Jingzhou AN verfasserin aut In Journal of Hebei University of Science and Technology Hebei University of Science and Technology, 2015 44(2023), 3, Seite 228-236 (DE-627)1009842242 10081542 nnns volume:44 year:2023 number:3 pages:228-236 https://doi.org/10.7535/hbkd.2023yx03003 kostenfrei https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd kostenfrei https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue kostenfrei https://doaj.org/toc/1008-1542 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 44 2023 3 228-236
language	Chinese
source	In Journal of Hebei University of Science and Technology 44(2023), 3, Seite 228-236 volume:44 year:2023 number:3 pages:228-236
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author	Jingzhi JIANG
spellingShingle	Jingzhi JIANG misc heat transfer; microchannel; micro device; numerical simulation; heat transfer misc Technology misc T Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
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topic_title	Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel heat transfer; microchannel; micro device; numerical simulation; heat transfer
topic	misc heat transfer; microchannel; micro device; numerical simulation; heat transfer misc Technology misc T
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title	Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
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title_full	Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
author_sort	Jingzhi JIANG
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title_sort	numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
title_auth	Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
abstract	The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels.
abstractGer	The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels.
abstract_unstemmed	The pressure drop at the inlet and outlet of rectangular microchannel is large, and the temperature distribution is uneven; Fractal microchannel is limited by fractal dimension and the number of branches, so its application scope is narrow. A branch and combined-branch microchannel heat sink was designed by combining the advantages of rectangular microchannel and fractal microchannel, and Fluent software was used to numerically simulate its heat dissipation process to study the flow and heat transfer performance when the branch tilt angle inside the microchannel changes. The results show that at the heat flow of 100 W/cm2, when the Re is 970 and the branch tilt angle is 90°, the average temperature of the branch and combined-branch microchannel decreases by 11.9 K, the maximum temperature decreases by 14.2 K, the Nu increases by 85.7%, and the performance evaluation criterion (PEC) is also the best by reaching 1.44. The introduction of branches can increase the heat transfer area inside the microchannel, form a new boundary layer, and generate vortices at the inner side of the branch, effectively improving the heat transfer performance of the microchannel heat sinks, which provides new theoretical basis for optimizing the design of microchannels.
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title_short	Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel
url	https://doi.org/10.7535/hbkd.2023yx03003 https://doaj.org/article/6127ae5c92124f9b9502b1f557bb95fd https://xuebao.hebust.edu.cn/hbkjdx/article/pdf/b202303003?st=article_issue https://doaj.org/toc/1008-1542
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Numerical simulation of flow and heat transfer performance in branch and combined-branch microchannel

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