Parametric studying of low-profile vortex generators flow control in an aggressive inter-turbine duct
文献类型：期刊论文
| 作者 | Zhang, Yanfeng1; Lu, Xingen1; Lei, Zhijun1; Han, Ge1; Zhu, Junqiang1; Hu, Shuzhen2 |
| 刊名 | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 229期号:8页码:849-861 |
| 关键词 | Aggressive inter-turbine duct low-profile vortex generator boundary layer separation counter-rotating vortex pair loss |
| 英文摘要 | 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标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Mechanical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | INTERTURBINE DIFFUSERS ; BOUNDARY-LAYER ; SEPARATION ; PERFORMANCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365134500003 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/112309]  |
| 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 | 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 |
| 推荐引用方式 GB/T 7714 | Zhang, Yanfeng,Lu, Xingen,Lei, Zhijun,et al. Parametric studying of low-profile vortex generators flow control in an aggressive inter-turbine duct[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,2015,229(8):849-861. |
| APA | Zhang, Yanfeng,Lu, Xingen,Lei, Zhijun,Han, Ge,Zhu, Junqiang,&Hu, Shuzhen.(2015).Parametric studying of low-profile vortex generators flow control in an aggressive inter-turbine duct.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY,229(8),849-861. |
| MLA | Zhang, Yanfeng,et al."Parametric studying of low-profile vortex generators flow control in an aggressive inter-turbine duct".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY 229.8(2015):849-861. |
入库方式： OAI收割
来源：工程热物理研究所
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