双曲叶片离子注入引起的电流体动力羽流强化传热

2014 IEEE 18th International Conference on Dielectric Liquids (ICDL) Pub Date : 2014-09-08 DOI:10.1109/ICDL.2014.6893163

Jian Wu, P. Traoré, C. Louste, A. Pérez, P. Vázquez

{"title":"双曲叶片离子注入引起的电流体动力羽流强化传热","authors":"Jian Wu, P. Traoré, C. Louste, A. Pérez, P. Vázquez","doi":"10.1109/ICDL.2014.6893163","DOIUrl":null,"url":null,"abstract":"The electrohydroyanmic (EHD) plume induced by charge injection from a hyperbolic blade into a dielectric liquid was considered to actively enhance heat transfer. We numerically studied an upward-facing hot plate with constant temperature cooled by an impinging ionic jet that results from a strong and autonomous injection. It is shown that the heat transfer rate expressed with the local and averaged Nusselt numbers are dramatically increased. In addition, we observe that the Nusselt number is independent of the Rayleigh number Ra (2.5×103 ≤ Ra ≤ 1.0×104) for all electric Rayleigh numbers T considered (5.0×102 ≤ T ≤ 2.0×104 ), which reflects the fully dominant role of the electric force.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Heat transfer enhancement by an electrohydrodynamic plume induced by ion injection from a hyperbolic blade\",\"authors\":\"Jian Wu, P. Traoré, C. Louste, A. Pérez, P. Vázquez\",\"doi\":\"10.1109/ICDL.2014.6893163\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The electrohydroyanmic (EHD) plume induced by charge injection from a hyperbolic blade into a dielectric liquid was considered to actively enhance heat transfer. We numerically studied an upward-facing hot plate with constant temperature cooled by an impinging ionic jet that results from a strong and autonomous injection. It is shown that the heat transfer rate expressed with the local and averaged Nusselt numbers are dramatically increased. In addition, we observe that the Nusselt number is independent of the Rayleigh number Ra (2.5×103 ≤ Ra ≤ 1.0×104) for all electric Rayleigh numbers T considered (5.0×102 ≤ T ≤ 2.0×104 ), which reflects the fully dominant role of the electric force.\",\"PeriodicalId\":6523,\"journal\":{\"name\":\"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)\",\"volume\":\"1 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICDL.2014.6893163\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICDL.2014.6893163","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

研究了双曲叶片向介质中注入电荷所产生的电液流羽，该羽流对介质的传热有积极的促进作用。我们数值研究了一个向上的恒温热板，该热板由强而自主的注入产生的撞击离子射流冷却。结果表明，用局部努塞尔数和平均努塞尔数表示的换热速率显著增加。此外，我们观察到，对于所有考虑的电瑞利数T (5.0×102≤T≤2.0×104)，努塞尔数与瑞利数Ra (2.5×103≤Ra≤1.0×104)无关，这反映了电力的完全主导作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Heat transfer enhancement by an electrohydrodynamic plume induced by ion injection from a hyperbolic blade

The electrohydroyanmic (EHD) plume induced by charge injection from a hyperbolic blade into a dielectric liquid was considered to actively enhance heat transfer. We numerically studied an upward-facing hot plate with constant temperature cooled by an impinging ionic jet that results from a strong and autonomous injection. It is shown that the heat transfer rate expressed with the local and averaged Nusselt numbers are dramatically increased. In addition, we observe that the Nusselt number is independent of the Rayleigh number Ra (2.5×10³ ≤ Ra ≤ 1.0×10⁴) for all electric Rayleigh numbers T considered (5.0×10² ≤ T ≤ 2.0×10⁴ ), which reflects the fully dominant role of the electric force.

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

2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)

自引率

0.00%

发文量