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X-33 Hypersonic Aerodynamic Characteristics [PDF]
Lockheed Martin Skunk works, under a cooperative agreement with NASA, will build and fly the X-33, a half-scale prototype of a rocket-based, single-stage-to-orbit (SSTO), reusable launch vehicle (RLV). A 0.007-scale model of the X-33 604B0002G configuration was tested in four hypersonic facilities at the NASA Langley Research Center to examine vehicle ...
Kelly Murphy +4 more
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X-34 vehicle aerodynamic characteristics [PDF]
The X-34, being designed and built by the Orbital Sciences Corporation, is an unmanned sub-orbital vehicle designed to be used as a flying test bed to demonstrate key vehicle and operational technologies applicable to future reusable launch vehicles. The X-34 will be air-launched from an L-1011 carrier aircraft at approximately Mach 0.7 and altitudes ...
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Nonlinear Feedback Control of Axisymmetric Aerial Vehicles [PDF]
We investigate the use of simple aerodynamic models for the feedback control of aerial vehicles with large flight envelopes. Thrust-propelled vehicles with a body shape symmetric with respect to the thrust axis are considered.
Hamel, Tarek +3 more
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The aerodynamic characteristics of reaction stages of a large steam turbine have been studied for the purpose of performance improvement. For the second step, the characteristics of the multistage with typical reaction bladings were studied by two-dimensional low-speed cascade tests and three-stage air turbine tests.
Yasuo KURAMOTO +4 more
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The aerodynamic characteristics of reaction stages of a large steam turbine have been studied for the basis of performance improvement. For the first step, the characteristics of a single reaction stage with typical reaction blading were studied by two-dimensional low-speed cascade tests and single-stage air turbine tests.
Yasuo KURAMOTO +4 more
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Aerodynamic characteristics of a hypersonic parachute [PDF]
Newtonian theory, both in the form of the Modified-Newtonian and the Newton- Busemann pressure laws, is used to find the shape, cloth area and drag of the axisymmetric canopy of a hypersonic parachute, whose only load-carrying fibres are longitudinal ...
Boyd, E. A.
core
Study of a Flexible UAV Proprotor [PDF]
This paper is concerned with the evaluation of design techniques, both for the propulsive performance and for the structural behavior of a composite flexible proprotor.
Bénard, Emmanuel +5 more
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Aerodynamic characteristics of grain sorghum
Wind speeds were measured above grain sorghum (Sorghum bicolor L. Moench cv. DK-57) canopies at Mead, Nebraska, during the 1982 and 1983 growing seasons. The crop was planted in north-south-oriented rows 0.76 m apart. The plant population per ha was about 276 000 in 1982 and 118 500 in 1983.
Pedro V. Azevedo, Shashi B. Verma
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Aerodynamic Characteristics of Airfoil Using Panel Method [PDF]
Potential flow over an airfoil plays an important historical role in the theory of flight. The governing equation for potential flow is Laplace\u27s equation, a widely studied linear partial differential equation. One of Green\u27s identities can be used
Junaidin, B. (Buyung)
core
Aerodynamic Characteristics of Swept Propellers
The vortex lattice method is applied to calculations of the aerodynamic characteristics of propellers. A blade of the propeller is divided into many trapezoidal panels, and each panel is represented by a spiral horse shoe vortex in which a bound vortex is placed on the 1/4chord line of the panel, and a pair of wake vortices is emitted from the both ...
Makoto KOBAYAKAWA +4 more
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