Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 22
Book Description
On Flowfield Periodicity in the NASA Transonic Flutter Cascade
Author: On Flowfield Periodicity in the NASA Transonic Flutter Cascade. Part 2; Numerical Study
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721203727
Category :
Languages : en
Pages : 28
Book Description
The transonic flutter cascade facility at NASA Glenn Research Center was redesigned based on a combined program of experimental measurements and numerical analyses. The objectives of the redesign were to improve the periodicity of the cascade in steady operation, and to better quantify the inlet and exit flow conditions needed for CFD predictions. Part I of this paper describes the experimental measurements, which included static pressure measurements on the blade and endwalls made using both static taps and pressure sensitive paints, cobra probe measurements of the endwall boundary layers and blade wakes, and shadowgraphs of the wave structure. Part II of this paper describes three CFD codes used to analyze the facility, including a multibody panel code, a quasi-three-dimensional viscous code, and a fully three-dimensional viscous code. The measurements and analyses both showed that the operation of the cascade was heavily dependent on the configuration of the sidewalls. Four configurations of the sidewalls were studied and the results are described. For the final configuration, the quasi-three-dimensional viscous code was used to predict the location of mid-passage streamlines for a perfectly periodic cascade. By arranging the tunnel sidewalls to approximate these streamlines, sidewall interference was minimized and excellent periodicity was obtained. Chima, Rodrick V. and McFarland, Eric R. and Wood, Jerry R. and Lepicovsky, Jan Glenn Research Center NASA/TM-2000-209933/PT1, NAS 1.15:209933/PT1, E-12177/PT1
Methodology of Blade Unsteady Pressure Measurement in the NASA Transonic Flutter Cascade
Author: Intermittent Flow Regimes in a Transonic Fan Airfoil Cascade
Author: ASME Technical Papers
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 464
Book Description
Paper
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 478
Book Description
Proceedings of the ASME Turbo Expo 2002
Author: Publisher:
ISBN:
Category : Aircraft gas-turbines
Languages : en
Pages : 616
Book Description
Author: 
Author: 
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