Results 161 to 170 of about 32,908 (214)
Characteristics and hemolysis analysis of centrifugal blood pumps under different speed modulations. [PDF]
Front PhysiolSu C, Jin D, Liu G, Li S, Gui X.
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Blade Trailing Edge Heat Transfer
Volume 1A: General, 1980In this article measurements of heat transfer, pressure loss, and friction factor inside simulated trailing edges of turbine blades are presented. The trailing edges considered are vented and the internal heat transfer surfaces are extended by means of staggered arrays of pillars interconnecting the blade pressure and suction surfaces.
A. Brown, B. Mandjikas, J. M. Mudyiwa
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Trailing Edge Blowing of Fan Blades
11th AIAA/CEAS Aeroacoustics Conference, 2005*† ‡ The wakes of model fan blades containing internal flow passages and trailing edge slots were carefully documented to investigate the potential for reductions in tone and broadband noise produced by aircraft engines. Measurements were taken at four locations downstream of the blade row of the Virginia Tech Low Speed Linear Cascade Wind Tunnel at a ...
Aurelien Borgoltz +2 more
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Vortex Shedding Behind a Blunt Trailing Edge Turbine Blade
International Journal of Turbo and Jet Engines, 1997By computational and experimental means, this-work investigates unsteady mixing processes of the wake behind a blunt trailing edge turbine blade. Numerical solutions of the Reynolds averaged Navier Stokes equations have been carried out employing state-of-the-art algorithms in a fully conservative structured multi-block approach.
MANNA, MARCELLO, M. Mulas, G. Cicatelli
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Modeling centrifugal fan blade trailing edge noise
The Journal of the Acoustical Society of America, 1999Centrifugal fan noise contains numerous aeroacoustic mechanisms, one of them being trailing edge noise due to turbulent boundary layer flows convecting over the blade trailing edge. A fundamental research program was conducted to develop a trailing edge noise database and assess the ability of existing aeroacoustic models to predict this mechanism. The
Robert H. Schlinker +3 more
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Trailing edge noise prediction for rotating serrated blades
20th AIAA/CEAS Aeroacoustics Conference, 2014Serrations have been widely studied in the case of stationary blades, as an efficient method for reducing trailing edge noise. However, most of the problems involving trailing edge noise are related to rotating blades and it is not known how rotation affects the efficiency of serrations.
Sinayoko, S., Azarpeyvand, M., Lyu, B.
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The Trailing Edge Loss of Transonic Turbine Blades
Volume 1: Turbomachinery, 1989Trailing edge loss is one of the main sources of loss for transonic turbine blades, contributing typically 1/3 of their total loss. Transonic trailing edge flow is extremely complex, the basic flow pattern is understood but methods of predicting the loss are currently based on empirical correlations for the base pressure.
J. D. Denton, L. Xu
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Trailing Edge Noise Modification in a Blade Cascade
Journal of Fluid Machinery, 2003It is addressed that the turbulent broadband sound power from a sirocco fan can be modeled by the trailing edge noise. The trailing edge noise is usually influenced by inflow turbulence, separation, and boundary layer thickness on the blade. The design parameters such as solidity (c/s) and stagger angle are specified to predict performance and noise ...
J.M. Son, H.J. Kim, S.B. Lee, S.M. Cho
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12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference), 2006
*† ‡ This paper presents a detailed analysis of measurements made in the wakes of idealized aircraft engine fan blades with and without trailing edge blowing. New measurements of the mean velocity field around the trailing edge are presented. These reveal that the structure of the trailing edge flow plays an important role in determining the effects of
Aurelien Borgoltz +2 more
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*† ‡ This paper presents a detailed analysis of measurements made in the wakes of idealized aircraft engine fan blades with and without trailing edge blowing. New measurements of the mean velocity field around the trailing edge are presented. These reveal that the structure of the trailing edge flow plays an important role in determining the effects of
Aurelien Borgoltz +2 more
openaire +1 more source