Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts

CORC > 工程热物理研究所 > 中国科学院工程热物理研究所 > 中国科学院工程热物理所（论文库） > 期刊论文（SCI）

	Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts
	Du Qiang; Wang Pei; Gong JianBo; Zhu JunQiang
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2012-12-01
卷号	55 期号:12 页码:3510-3520
关键词	bypass ratio intermediate turbine duct separation-free area ratio area change rates
英文摘要	The demand of further increasing bypass ratio of aeroengine will lead to low pressure turbines with higher diameter. Therefore, it is necessary to design a duct to guide the hot gas flow which is expelled from the upstream high pressure (HP) turbine stage to the downstream low pressure (LP) turbine stage. Named by its position, this kind of duct is always called intermediate turbine ducts (ITDs). Due to the pursuit of higher thrust ratio of the aeroengine, this kind of ITDs has to beas short as possible which leads to aggressive (high diffusion) S-shaped ITDs' geometry. In this paper, two different schemes of high diffusion separation-free S-shaped ITDs were studied with the aid of three-dimensional CFD programs. Although these two ITDs have the same area ratios (AR), because of the different duct length, they have totally different area as well as area change rates. With the detailed calculation results, comparisons were made to investigate the underneath physical mechanisms. Additionally, a direct estimation of the ITDs' loss is given at the end of this paper and some ITDs' novel design idea is proposed to initiate some further discussions.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	PROFILE
收录类别	SCI
语种	英语
WOS记录号	WOS:000313766100030
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/101552]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Du Qiang,Wang Pei,Gong JianBo,et al. Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2012,55(12):3510-3520.
APA	Du Qiang,Wang Pei,Gong JianBo,&Zhu JunQiang.(2012).Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,55(12),3510-3520.
MLA	Du Qiang,et al."Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 55.12(2012):3510-3520.