Highly integrated digital engine control system on an F-15 airplane [PDF]
The Highly Integrated Digital Electronic Control (HIDEC) program will demonstrate and evaluate the improvements in performance and mission effectiveness that result from integrated engine/airframe control systems.
Burcham, F. W., Jr., Haering, E. A., Jr.
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Flight test: Supporting the investigation of factors affecting loss of control of light aircraft [PDF]
, 2009 A quarter of all fatal General Aviation accidents in the UK during the period 1980 to 2006 involved Loss of Control (LoC) in Visual Meteorological Conditions (VMC).
Bromfield, MA, Gratton, GB
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Effects of Tip Injection on a Turbofan Engine with Non-Invasive High-Speed Actuators
International Journal of Turbomachinery, Propulsion and PowerThis paper presents an analysis of the stability margin improvement (SMI), which is also known as stall margin improvement, achieved by continuous tip air injection.
Yannik Schäfer +3 more
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Performance of two-stage fan having low-aspect-ratio first-stage rotor blading [PDF]
The NASA two stage fan was tested with a low aspect ratio first stage rotor having no midspan dampers. At design speed the fan achieved an adiabatic design efficiency of 0.846, and peak efficiencies for the first stage and rotor of 0.870 and 0.906 ...
Cunnan, W. S. +2 more
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Journal of Applied Fluid Mechanics, 2021 The development of high-performance aero engines put forward higher performance requirements for compressor components, and the improvement of aerodynamic performance of compressors has important engineering application value.
S. Yan +5 more
doaj
Study of casing treatment stall margin improvement phenomena [PDF]
The results of a program of experimental and analytical research in casing treatments over axial compressor rotor blade tips are presented. Circumferential groove, axial-skewed slot, and blade angle slot treatments were tested.
Hilvers, D. E. +2 more
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Sweep Optimization to Reduce Aerodynamic Loss in a Transonic Axial Compressor with Upstream Boundary Layer Ingestion [PDF]
Journal of Applied Fluid MechanicsThe aerodynamic performance of axial compressor rotors is negatively affected by the ingestion of boundary layer fluids upstream. As the boundary layer becomes thicker, the blade tip load increases and the local loss is aggravated, especially under off ...
T. Pan, K. Shi, H. Lu, J. Zhang, Q. Li
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Effect of grooved casing treatment on the flow range capability of a single-stage axial-flow compressor [PDF]
Comparisons of the results of testing a single-stage axial-flow compressor with a solid-wall casing and with grooved casings are presented. The depth, location, and number of circumferential grooves in the casing over the casing over the rotor tip were ...
Bailey, E. E.
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DEVELOPMENT OF AN ADVANCED HIGH PRESSURE RATIO TRANSONIC FAN STAGE. PART-I: DESIGN AND ANALYSIS [PDF]
, 2001 A high performance fan stage of pressure ratio 2.0 is being designed and developed under a joint programme between Chinese Aeronautical Establishment (CAE) China and National Aerospace Laboratories (NAL), Bangalore, India..
Anantha Murhy, MV +5 more
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Effect of casing treatment on performance of an inlet stage for a transonic multistage compressor [PDF]
An inlet stage of a transonic compressor was tested with three rotor tip casing treatment configurations: blade angle slots, circumferential grooves, and axial skewed slots.
Lewis, G. W., Jr. +2 more
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