Lu Tang , Kunrong Huang , Jiahui Xing , Liping Xiang , Xingyou Li
{"title":"新型射流微通道传热与流动特性研究","authors":"Lu Tang , Kunrong Huang , Jiahui Xing , Liping Xiang , Xingyou Li","doi":"10.1016/j.icheatmasstransfer.2025.108818","DOIUrl":null,"url":null,"abstract":"<div><div>To enhance the performance and reliability of electronic devices and foster innovation in thermal management technology within the academic community, this study proposes a novel triple-jet-winged fin microchannel structure. The effects of fin shape, fin height, and fin offset distance on the flow characteristics, heat transfer performance, and overall performance of the jet microchannel were investigated. Through comparing numerical simulation calculation, it is found that the comprehensive performance of airfoil fins is higher than that of semi-airfoil fins; As the fin height and offset distance increase, both the heat transfer coefficient and overall performance initially increase and then decrease. The optimal thermal performance is achieved when the fin height is 0.36 mm and the offset distance is 0.04 mm, while the best temperature uniformity on the bottom surface occurs when the offset distance is 0. Compared with the conventional single-jet microchannel, the final structure improves the heat transfer coefficient and overall performance by 55.9 % and 17.8 %, respectively, reduces the overall thermal resistance by 24 %, and lowers the maximum temperature by 16.44 K. The study concludes that increasing multi-jet holes and fin microstructures can further enhance the heat transfer performance, overall performance, and bottom surface temperature uniformity of jet microchannels.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"164 ","pages":"Article 108818"},"PeriodicalIF":6.4000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Research on heat transfer and flow characteristics of novel jet microchannels\",\"authors\":\"Lu Tang , Kunrong Huang , Jiahui Xing , Liping Xiang , Xingyou Li\",\"doi\":\"10.1016/j.icheatmasstransfer.2025.108818\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>To enhance the performance and reliability of electronic devices and foster innovation in thermal management technology within the academic community, this study proposes a novel triple-jet-winged fin microchannel structure. The effects of fin shape, fin height, and fin offset distance on the flow characteristics, heat transfer performance, and overall performance of the jet microchannel were investigated. Through comparing numerical simulation calculation, it is found that the comprehensive performance of airfoil fins is higher than that of semi-airfoil fins; As the fin height and offset distance increase, both the heat transfer coefficient and overall performance initially increase and then decrease. The optimal thermal performance is achieved when the fin height is 0.36 mm and the offset distance is 0.04 mm, while the best temperature uniformity on the bottom surface occurs when the offset distance is 0. Compared with the conventional single-jet microchannel, the final structure improves the heat transfer coefficient and overall performance by 55.9 % and 17.8 %, respectively, reduces the overall thermal resistance by 24 %, and lowers the maximum temperature by 16.44 K. The study concludes that increasing multi-jet holes and fin microstructures can further enhance the heat transfer performance, overall performance, and bottom surface temperature uniformity of jet microchannels.</div></div>\",\"PeriodicalId\":332,\"journal\":{\"name\":\"International Communications in Heat and Mass Transfer\",\"volume\":\"164 \",\"pages\":\"Article 108818\"},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2025-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Communications in Heat and Mass Transfer\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S073519332500243X\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Communications in Heat and Mass Transfer","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S073519332500243X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MECHANICS","Score":null,"Total":0}
Research on heat transfer and flow characteristics of novel jet microchannels
To enhance the performance and reliability of electronic devices and foster innovation in thermal management technology within the academic community, this study proposes a novel triple-jet-winged fin microchannel structure. The effects of fin shape, fin height, and fin offset distance on the flow characteristics, heat transfer performance, and overall performance of the jet microchannel were investigated. Through comparing numerical simulation calculation, it is found that the comprehensive performance of airfoil fins is higher than that of semi-airfoil fins; As the fin height and offset distance increase, both the heat transfer coefficient and overall performance initially increase and then decrease. The optimal thermal performance is achieved when the fin height is 0.36 mm and the offset distance is 0.04 mm, while the best temperature uniformity on the bottom surface occurs when the offset distance is 0. Compared with the conventional single-jet microchannel, the final structure improves the heat transfer coefficient and overall performance by 55.9 % and 17.8 %, respectively, reduces the overall thermal resistance by 24 %, and lowers the maximum temperature by 16.44 K. The study concludes that increasing multi-jet holes and fin microstructures can further enhance the heat transfer performance, overall performance, and bottom surface temperature uniformity of jet microchannels.
期刊介绍:
International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.