Results 241 to 250 of about 166,033,218 (291)
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Aircraft Engineering and Aerospace Technology, 1960
THE main criterion for controlling the flight path of an aircraft should, of course, be the angle of attack. However, it is only recently that instruments have become available which could provide pilots with continuous angle of attack information. The demand for an instrument which could provide this information accurately has now been met by the ...
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THE main criterion for controlling the flight path of an aircraft should, of course, be the angle of attack. However, it is only recently that instruments have become available which could provide pilots with continuous angle of attack information. The demand for an instrument which could provide this information accurately has now been met by the ...
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The hemisphere-cylinder at an angle of attack
28th Aerospace Sciences Meeting, 1990The investigation of the flow over a cylinder with a hemispherical nose at an angle of attack is presented. Experiments were conducted in a 6 ft x 6 ft low-turbulence tunnel. The focus of this research is the separated region as well as the evaluation and testing of a new diagnostic tool, a fiber-optic laser-Doppler probe.
D. TELIONIS, G. JONES
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On the Stability of Supercavity with Angle of Attack
Proceedings of the 8th International Symposium on Cavitation, 2012SUMMARY Research on the supercavity stability is not only the focus question as a physical phenomenon in the field of the supercavity flows, is but also the basis of studying the control of the supercavitating flows and their vehicles. Angle of attack (AOA) is one of the most important control variables that can maintain and control the supercavity ...
Wang Zou +4 more
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High angle of attack hypersonic aerodynamics
5th Applied Aerodynamics Conference, 1987A new aerodynamics force model is presented which is based on modified Newtonian theory and empirical correlations. The algebraic model was developed for complete vehicles from take off to orbital speeds and for large angles of attack. Predictions are compared to results for a wind tunnel model at a Mach number of 20, and the full scale Shuttle Orbiter
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Angle-of-attack control of spinning missiles
Mechanics and Control of Flight Conference, 1974The application of controlled wind-fixed pitch and yaw moments to control the coning angle of a spinning missile is described. The open-loop response to applied pitch and yaw moments is derived, and the closed-loop behavior of an angle-of-attack control system is analyzed.
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Determination of Attack Angle and Tilt Angle of a Cutting Pick
Advanced Materials Research, 2013Mechanical excavators play an important role in mining and construction. An excavation machine cuts rocks using its cutterhead which is normally composed of a large number of cutting picks. These picks are installed on a drum with certain attack angles, tilt angles and skew angles. These angles, especially attack and tilt angles, will affect the forces
Yong Sun, Xing Sheng Li
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Aerodynamics of finned missiles at high angle of attack
9th Aerospace Sciences Meeting, 1971A theoretical and experimental investigation of the aerodynamics of finned missiles at high angle-of-attack is presented. The interaction of the body vortex wake region with the missile fins aiid the resulting effect on the forces and moments produced by the fins is studied.
WILLIAM L. OBERKAMPF, JOHN D. NICOLAIDES
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High Angle-of-Attack Aerodynamics
Annual Review of Fluid Mechanics, 1995High angle-of-attack (high-IX) aerodynamics has been a key element in airplane design beginning with the first attempts at unpowered manned flight using gliders in the 1 800s and extending to the present day with civil and military airplanes. High-IX aerodynamics is commonly perceived as arising on an airplane at a physically large angle of attack with
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Calculation of the flow on a cone at high angle of attack
6th Fluid and PlasmaDynamics Conference, 19732 Kreith, F. and Sonju, O. K., "The Decay of a Turbulent Swirl in a Pipe," Journal of Fluid Mechanics, Vol. 22, No. 2, 1965, pp.257-271. 3 Menis, M., "Effect of Vortex Decay on Pipe Flow," Rept. 61, Nov. 1960, Gas Turbine Lab., MIT, Cambridge', Mass. 4 Youssef, T. E. A., "Some Investigations on Rotating Flow with a Recirculation Core in Straight Pipes,"
Lubard, Stephen C. +1 more
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Low Cost Accurate Angle of Attack System
55th AIAA Aerospace Sciences Meeting, 2017A low-cost ($100) differential pressure-based commercial off-the-shelf angle-of-attack data acquisition system was designed, successfully reduced to practice, and wind-tunnel and flight tested.
Borja Martos, David F. Rogers
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