射流阵列对流换热研究

Q3 Engineering
Niranjan Murthy
{"title":"射流阵列对流换热研究","authors":"Niranjan Murthy","doi":"10.4273/ijvss.15.3.04","DOIUrl":null,"url":null,"abstract":"The primary goal of this experimental investigation is to study the effects of various geometrical factors on heat transfer. The tests were performed by changing the heat flux from 0.025 to 0. 2K W/cm^2 and a jet Reynolds number from 2500 to 4500 with a jet exit to target object distance of 10 and 20mm.The test plate is a copper material of size 2mm by 2mm with a negligible thickness, a copper material is taken for its good thermal properties. In all the tested cases it is noticed that as the heat flux surges the plate temperature rise which in turn increase the heat transfer co-efficient. The value of h increases slowly with rise in Reynolds number in all the cases tested. The heat transfer results obtained from this research work is related by means of the simple relationship Nuavg =0.7 q^0.8 Re^0.25.","PeriodicalId":14391,"journal":{"name":"International Journal of Vehicle Structures and Systems","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Convective Heat Transfer Study with an Array of Air Jets\",\"authors\":\"Niranjan Murthy\",\"doi\":\"10.4273/ijvss.15.3.04\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The primary goal of this experimental investigation is to study the effects of various geometrical factors on heat transfer. The tests were performed by changing the heat flux from 0.025 to 0. 2K W/cm^2 and a jet Reynolds number from 2500 to 4500 with a jet exit to target object distance of 10 and 20mm.The test plate is a copper material of size 2mm by 2mm with a negligible thickness, a copper material is taken for its good thermal properties. In all the tested cases it is noticed that as the heat flux surges the plate temperature rise which in turn increase the heat transfer co-efficient. The value of h increases slowly with rise in Reynolds number in all the cases tested. The heat transfer results obtained from this research work is related by means of the simple relationship Nuavg =0.7 q^0.8 Re^0.25.\",\"PeriodicalId\":14391,\"journal\":{\"name\":\"International Journal of Vehicle Structures and Systems\",\"volume\":\"31 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-10-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Vehicle Structures and Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4273/ijvss.15.3.04\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Vehicle Structures and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4273/ijvss.15.3.04","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0

摘要

本实验研究的主要目的是研究各种几何因素对传热的影响。将热流密度从0.025改变为0进行测试。2K W/cm^2,射流雷诺数从2500到4500,射流出口到目标物体的距离为10和20mm。测试板为2mm × 2mm的铜材料,厚度可忽略不计,铜材料具有良好的热性能。在所有的测试案例中都注意到,随着热流的激增,板的温度升高,这反过来又增加了传热系数。在所有测试情况下,h值随雷诺数的增加而缓慢增加。本研究工作得到的换热结果用简单关系Nuavg =0.7 q^0.8 Re^0.25表示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Convective Heat Transfer Study with an Array of Air Jets
The primary goal of this experimental investigation is to study the effects of various geometrical factors on heat transfer. The tests were performed by changing the heat flux from 0.025 to 0. 2K W/cm^2 and a jet Reynolds number from 2500 to 4500 with a jet exit to target object distance of 10 and 20mm.The test plate is a copper material of size 2mm by 2mm with a negligible thickness, a copper material is taken for its good thermal properties. In all the tested cases it is noticed that as the heat flux surges the plate temperature rise which in turn increase the heat transfer co-efficient. The value of h increases slowly with rise in Reynolds number in all the cases tested. The heat transfer results obtained from this research work is related by means of the simple relationship Nuavg =0.7 q^0.8 Re^0.25.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
International Journal of Vehicle Structures and Systems
International Journal of Vehicle Structures and Systems Engineering-Mechanical Engineering
CiteScore
0.90
自引率
0.00%
发文量
78
期刊介绍: The International Journal of Vehicle Structures and Systems (IJVSS) is a quarterly journal and is published by MechAero Foundation for Technical Research and Education Excellence (MAFTREE), based in Chennai, India. MAFTREE is engaged in promoting the advancement of technical research and education in the field of mechanical, aerospace, automotive and its related branches of engineering, science, and technology. IJVSS disseminates high quality original research and review papers, case studies, technical notes and book reviews. All published papers in this journal will have undergone rigorous peer review. IJVSS was founded in 2009. IJVSS is available in Print (ISSN 0975-3060) and Online (ISSN 0975-3540) versions. The prime focus of the IJVSS is given to the subjects of modelling, analysis, design, simulation, optimization and testing of structures and systems of the following: 1. Automotive vehicle including scooter, auto, car, motor sport and racing vehicles, 2. Truck, trailer and heavy vehicles for road transport, 3. Rail, bus, tram, emerging transit and hybrid vehicle, 4. Terrain vehicle, armoured vehicle, construction vehicle and Unmanned Ground Vehicle, 5. Aircraft, launch vehicle, missile, airship, spacecraft, space exploration vehicle, 6. Unmanned Aerial Vehicle, Micro Aerial Vehicle, 7. Marine vehicle, ship and yachts and under water vehicles.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信