中国科学院工程热物理研究所机构知识库
Advanced  
ETP OpenIR  > 中国科学院工程热物理所(论文库)  > 期刊论文(SCI)
Title: Parametric studying of low-profile vortex generators flow control in an aggressive inter-turbine duct
Author: Zhang, Yanfeng1; Lu, Xingen1; Lei, Zhijun1; Han, Ge1; Zhu, Junqiang1; Hu, Shuzhen2
Source: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
Issued Date: 2015-12-01
Volume: 229, Issue:8, Pages:849-861
Keyword: Aggressive inter-turbine duct ; low-profile vortex generator ; boundary layer separation ; counter-rotating vortex pair ; loss
DOI: 10.1177/0957650915600085
DOC Type: Article
English Abstract: This paper presents a study of low-profile vortex generators flow control on the effect of casing boundary layer separation in an aggressive inter-turbine duct. Counter-rotating and co-rotating vortex generators configurations were tested parametrically to obtain the optimum low-profile vortex generators' setup within the aggressive inter-turbine duct, in terms of the axial location, height, angle of attack and streamwise vortices per swirl vane pitch. Surface oil flow visualization was used to qualitatively examine the low-profile vortex generators eliminating the casing separation and subsequently the detailed seven-hole probe measurements were carried out to evaluate the loss reduction quantitatively. The inter-turbine duct examined for this study was more aggressive compared with the geometries found in the most current modern engine designs. Measurements were made inside the aggressive inter-turbine duct annulus at Reynolds number of 150,000. The flow structures within the aggressive inter-turbine duct were found to be dominated by counter-rotating vortices evolved by the swirl vanes and boundary layer separation in both casing and hub regions. A massive casing boundary layer separation extending from the duct first bend to the second bend was found within the aggressive inter-turbine duct. The primary source of pressure loss in the aggressive inter-turbine ducts was the result of the extensive casing boundary layer separation. Flow control by utilizing the low-profile vortex generators installed on the casing was conducted to eliminate the casing separation. Regardless of the vortex generator mitigating the casing separation associated with consequential loss reduction, a pair of casing counter-rotating vortices was always evident at the duct second bend in all cases. Among the tested low-profile vortex generator configurations, two of the most effective low-profile vortex generator configurations, one counter-rotating and one co-rotating low-profile vortex generator configurations, were acquired as a result of successfully eliminating the casing separation. Despite that the inter-turbine duct is aggressively designed, it is concluded that this duct associated with proper flow control techniques is considered as a potential candidate for weight saving in a high bypass ratio engine.
WOS Headings: Science & Technology ; Technology
WOS Subject: Engineering, Mechanical
WOS Subject Extended: Engineering
WOS Keyword Plus: INTERTURBINE DIFFUSERS ; BOUNDARY-LAYER ; SEPARATION ; PERFORMANCE
Indexed Type: SCI
Funder: National Research Council of Canada ; National Natural Science Foundation of China(51176187)
Language: 英语
WOS ID: WOS:000365134500003
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112309
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

Files in This Item:

There are no files associated with this item.


description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Light Duty Gas Turbine, Beijing 100190, Peoples R China
2.AVIC Commercial Aircraft Engine Co Ltd, R&D Ctr, Turbine Design Dept, Shanghai, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang, Yanfeng]'s Articles
[Lu, Xingen]'s Articles
[Lei, Zhijun]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang, Yanfeng]‘s Articles
[Lu, Xingen]‘s Articles
[Lei, Zhijun]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院工程热物理研究所 - Feedback
Powered by CSpace