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	Effects of vortex Generator on Cylindrical Protrusion Aerodynamics
	Ram, P. S. V., Setoguchi, T. and Kim, H. D.1
	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.
内容类型	期刊论文
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).

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