Research progress of kidney vortex and its application in film cooling

IF 2.6 3区工程技术 Q2 ENGINEERING, MECHANICAL

International Journal of Heat and Fluid Flow Pub Date : 2024-12-13 DOI:10.1016/j.ijheatfluidflow.2024.109706

Ang Li, Guoqing Li, Yunhong Ruan, Chenyang Kang, Ruofan Wang, Xingen Lu

{"title":"Research progress of kidney vortex and its application in film cooling","authors":"Ang Li, Guoqing Li, Yunhong Ruan, Chenyang Kang, Ruofan Wang, Xingen Lu","doi":"10.1016/j.ijheatfluidflow.2024.109706","DOIUrl":null,"url":null,"abstract":"<div><div>Kidney vortex is a typical flow structure formed by the interaction between jet and cross flow. One case where kidney vortex is frequently observed and studied is film cooling: jet from a hole functioning as coolant interacts with a complicated mainstream. In a simplified flat plate model of film cooling, coolant injected from column hole results in kidney vortex in the cross-flow mainstream and it has been proved that kidney vortex has a negative impact on film cooling effectiveness and causes detachment of the coolant. Based on the idea of controlling the flow field to enhance film cooling effectiveness, kidney vortex is studied on the aspects of its structure, classification, unsteady characteristics, entrainment of the mainstream and coolant lift-off. Efforts have also been made to avoid the formation of kidney vortex and to construct other flow structures. In this paper, a review on kidney vortex is made in order to conclude research progress and application of its formation and evolution mechanisms mentioned above. Some existing challenges on the quantitative study of the application of kidney vortex in film cooling are also pointed out.</div></div>","PeriodicalId":335,"journal":{"name":"International Journal of Heat and Fluid Flow","volume":"112 ","pages":"Article 109706"},"PeriodicalIF":2.6000,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Heat and Fluid Flow","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0142727X24004314","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Kidney vortex is a typical flow structure formed by the interaction between jet and cross flow. One case where kidney vortex is frequently observed and studied is film cooling: jet from a hole functioning as coolant interacts with a complicated mainstream. In a simplified flat plate model of film cooling, coolant injected from column hole results in kidney vortex in the cross-flow mainstream and it has been proved that kidney vortex has a negative impact on film cooling effectiveness and causes detachment of the coolant. Based on the idea of controlling the flow field to enhance film cooling effectiveness, kidney vortex is studied on the aspects of its structure, classification, unsteady characteristics, entrainment of the mainstream and coolant lift-off. Efforts have also been made to avoid the formation of kidney vortex and to construct other flow structures. In this paper, a review on kidney vortex is made in order to conclude research progress and application of its formation and evolution mechanisms mentioned above. Some existing challenges on the quantitative study of the application of kidney vortex in film cooling are also pointed out.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Heat and Fluid Flow 工程技术-工程：机械

CiteScore

5.00

自引率

7.70%

发文量

131

审稿时长

33 days

期刊介绍： The International Journal of Heat and Fluid Flow welcomes high-quality original contributions on experimental, computational, and physical aspects of convective heat transfer and fluid dynamics relevant to engineering or the environment, including multiphase and microscale flows. Papers reporting the application of these disciplines to design and development, with emphasis on new technological fields, are also welcomed. Some of these new fields include microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.