Results 71 to 80 of about 32,009 (212)
An examination of gas compressor stability and rotating stall [PDF]
The principal sources of vibration related reliability problems in high pressure centrifugal gas compressors are the re-excitation of the first critical speed or Resonant Subsynchronous Vibration (RSSV), and the forced vibration due to rotating stall in ...
Fozi, Aziz A.
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Development of the space shuttle body flap actuation subsystem [PDF]
, 1985 Development of the Body Flap Actuation Subsystem for Space Shuttles included alterations from the original design to mechanical stops, planet gears, control valves, and solenoid valves.
Boggs, C. R.
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Measurement of Flow Pattern Within a Rotating Stall Cell in an Axial Compressor [PDF]
Effective active control of rotating stall in axial compressors requires detailed understanding of flow instabilities associated with this compressor regime.
Braunscheidel, Edward P. +1 more
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Growth of Black Holes in the interior of Rotating Neutron Stars
, 2013 Mini-black holes made of dark matter that can potentially form in the interior of neutron stars have been always thought to grow by accreting the matter of the core of the star via a spherical Bondi accretion.
Kouvaris, Chris, Tinyakov, Peter
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Experimental Investigation of Rotating Stall in a Research Multistage Axial Compressor [PDF]
A collection of experimental data acquired in the NASA low-speed multistage axial compressor while operated in rotating stall is presented in this paper.
Braunscheidel, Edward P. +2 more
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Model reduction, centering, and the Karhunen-Loeve expansion [PDF]
, 1998 We propose a new computationally efficient modeling method that captures a given translation symmetry in a system. To obtain a low order approximate system of ODEs, prior to performing a Karhunen Loeve expansion, we process the available data set using a
Glavaški, Sonja +2 more
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AIP Advances, 2019 This paper presents an investigation into the interaction between a low-speed compressor and a circumferential inlet distortion, through high-resolution measurements and full annulus Detached-Eddy simulation.
Youtian Zhou, Jun Li, Guoxing Song
doaj +1 more source
Experimental evaluation of a TF30-P-3 turbofan engine in an altitude facility: Effect of steady-state temperature distortion [PDF]
The effects of circumferential distortion of the total temperature entering 25, 50, and 75 percent of the inlet circumferential annulus of a turbofan engine were determined.
Braithwaite, W. M.
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Rotating stall in variable geometry compressors
, 2016 The design and operation of gas-turbine engines is heavily influenced by the off-design stability of the compressor, which limits obtainable performance and may result in aeroelastic vibration issues. Whilst Variable Stator Vanes (VSVs) are widely used to mitigate this problem, research considering the mismatching effect of VSVs away from their optimal
openaire +3 more sources
Active Control of Vaneless Diffuser Rotating Stalls.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1992 Experiments were carried out to study the feasibility of active stabilization of vaneless diffuser rotating stalls. Pressure fluctuation at the diffuser inlet was monitored and used to control the rotating stall. A. C. controll flow, which is produced by a loud speaker, was introduced into the diffuser at the diffuser inlet.
Yoshiki YOSHIDA +3 more
openaire +2 more sources