Design performance evaluation and vortex structure investigation of different S-shaped intermediate turbine ducts
文献类型：期刊论文
| 作者 | Du Qiang; Wang Pei; Gong JianBo; Zhu JunQiang |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：工程热物理研究所
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