Aerodynamic Response of Turbomachinery Blade Rows to Convecting Density Wakes

H. S. Wijesinghe, C. Tan, E. Covert
{"title":"Aerodynamic Response of Turbomachinery Blade Rows to Convecting Density Wakes","authors":"H. S. Wijesinghe, C. Tan, E. Covert","doi":"10.1115/1.1311287","DOIUrl":null,"url":null,"abstract":"\n Convecting density wakes have not been considered as a source of unsteady aerodynamic loading on turbomachinery blade rows. These unsteady loads could influence high cycle fatigue failure of blades and vanes in gas turbine engines. The goals of this study are to understand the temporal evolution of density wakes and to determine key controlling parametric trends on blade loading. Inviscid numerical calculations are conducted to illustrate the basic flowfield in the absence of boundary layer interactions. The profile and scaling of the unsteady loads is given here for two density gradient distributions.","PeriodicalId":403237,"journal":{"name":"Analysis and Design Issues for Modern Aerospace Vehicles","volume":"11 13","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analysis and Design Issues for Modern Aerospace Vehicles","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/1.1311287","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4

Abstract

Convecting density wakes have not been considered as a source of unsteady aerodynamic loading on turbomachinery blade rows. These unsteady loads could influence high cycle fatigue failure of blades and vanes in gas turbine engines. The goals of this study are to understand the temporal evolution of density wakes and to determine key controlling parametric trends on blade loading. Inviscid numerical calculations are conducted to illustrate the basic flowfield in the absence of boundary layer interactions. The profile and scaling of the unsteady loads is given here for two density gradient distributions.
涡轮机械叶片排对密度尾迹的气动响应
对流密度尾迹并未被认为是涡轮机械叶片排非定常气动载荷的来源。这些非定常载荷会影响燃气涡轮发动机叶片的高周疲劳失效。本研究的目的是了解密度尾迹的时间演变,并确定叶片载荷的关键控制参数趋势。对无边界层相互作用时的基本流场进行了无粘数值计算。本文给出了两种密度梯度分布下的非定常载荷的分布和标度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
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