Effects of vortex Generator on Cylindrical Protrusion Aerodynamics
文献类型：期刊论文
| 作者 | Ram, P. S. V., Setoguchi, T. and Kim, H. D.1 |
| 出版日期 | 2016 |
| 关键词 | Cylindrical protrusion Vortex generator Shock wave boundary layer interaction Drag control turbulent-boundary-layer protuberances separation |
| 中文摘要 | The suction side boundary layer evolution of a high-lift low-pressure turbine cascade has been experimentally investigated at low and high free-stream turbulence intensity conditions. Measurements have been carried out in order to analyze the boundary layer transition and separation processes at a low Reynolds number, under both steady and unsteady inflows. Static pressure distributions along the blade surfaces as well as total pressure distributions in a downstream tangential plane have been measured to evaluate the overall aerodynamic efficiency of the blade for the different conditions. Particle Image Velocimetry has been adopted to analyze the time-mean and time-varying velocity fields. The flow field has been surveyed in two orthogonal planes (a blade-to-blade plane and a wall-parallel one). These measurements allow the identification of the Kelvin-Helmholtz large scale coherent structures shed as a consequence of the boundary layer laminar separation under steady inflow, as well as the investigation of the three-dimensional effects induced by the intermittent passage of low and high speed streaks. A close inspection of the time-mean velocity profiles as well as of the boundary layer integral parameters helps to characterize the suction side boundary layer state, thus justifying the influence of free-stream turbulence intensity on the blade aerodynamic losses measured under steady and unsteady inflows. |
| 源URL | [http://ir.etp.ac.cn/handle/311046/113094]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science_期刊论文 |
| 作者单位 | 1.[Rehman, M. Mohib Ur 2.Qu, Z. G. 3.Fu, R. P.] Xi An Jiao Tong Univ, Sch Energy & Power Engi neering, Key Lab Thermal Fluid Sci & Engn, Minist Educt, Xian 710049, Shaanxi, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ram, P. S. V., Setoguchi, T. and Kim, H. D.. Effects of vortex Generator on Cylindrical Protrusion Aerodynamics[J],2016. |
| APA | Ram, P. S. V., Setoguchi, T. and Kim, H. D..(2016).Effects of vortex Generator on Cylindrical Protrusion Aerodynamics.. |
| MLA | Ram, P. S. V., Setoguchi, T. and Kim, H. D.."Effects of vortex Generator on Cylindrical Protrusion Aerodynamics".(2016). |
入库方式： OAI收割
来源：工程热物理研究所
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