Results 61 to 70 of about 32,009 (212)
Flow mechanism and experimental investigation of a rotating stall in transonic compressors [PDF]
The flow characteristics of the rotating stall in compressors is studied, and a flow model is developed along with a theoretical calculation method based on vortex theory.
Shunlin, Z., Yajun, L.
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Comparative study of transition models for high-angle-of-attack behavior [PDF]
, 2019 This paper considers transition modeling for the flow over small unmanned aerial vehicles with a span of around 1 m. Such flows are characterized by very low values of turbulence intensity, and the main cause for transition corresponds to flow separation.
Degroote, Joris +2 more
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International Journal of Rotating Machinery, 2004 The rotating stall is a key problem for achieving a good working range of a centrifugal compressor and a detailed understanding of the phenomenon is very important to anticipate and avoid it.
Giovanni Ferrara +2 more
doaj +1 more source
A theory of post-stall transients in multistage axial compression systems [PDF]
A theory is presented for post stall transients in multistage axial compressors. The theory leads to a set of coupled first-order ordinary differential equations capable of describing the growth and possible decay of a rotating-stall cell during a ...
Greitzer, E. M., Moore, F. K.
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An Adaptive Control for Rotating Stall and Surge of Jet Engines - A Function Approximation Approach [PDF]
[[abstract]]Compressor instabilities such as surge and rotating stall are highly unwanted phenomena in operation of jet engines. This is because these two instabilities reduce the performance and cause damage to aircraft engines. In this study, we design
Tyan, Feng
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Experimental and Numerical Investigation of Unforced unsteadiness in a Vaneless Radial Diffuser [PDF]
, 2011 The paper reports combined experimental and numerical investigations of unforced un- steadiness in a vaneless radial diffuser. Experimental data were obtained within the diffuser using stereoscopic time resolved Particle Image Velocimetry (PIV) recording
ARDIZZON, Guido +5 more
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Gas turbine rotor/case structural response to rotating stall: Experimental documentation and analytical approach [PDF]
, 1982 The forcing functions and structural responses characterizing gas turbine rotor/case system vibration due to rotating stall in an axial flow compressor are described.
Haley, P. J.
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Evaluation of a stall-flutter spring-damper pushrod in the rotating control system of a CH-54B helicopter [PDF]
Results of a design and flight test program conducted to define the effect of rotating pushrod damping on stall-flutter induced control loads are presented.
Adams, D. O. +2 more
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International Journal of Rotating Machinery, 2012 The ability to predict the nature of instabilities is highly important from the compressor design point of view since their consequences could result in widely varying difficulties with the fluid dynamic performance of the systems.
Ananth Sivaramakrishnan Malathi +1 more
doaj +1 more source
Journal of the Global Power and Propulsion Society, 2018 The flow structures in an axial compressor that lead to short-length scale stall inception are investigated using optical measurements in a high-speed one and a half stage compressor.
Christoph Brandstetter +1 more
doaj +1 more source