Results 11 to 20 of about 187,061 (298)
Comparison of Aero-Propulsive Performance Predictions for Distributed Propulsion Configurations [PDF]
55th AIAA Aerospace Sciences Meeting, 2017 NASA's X-57 "Maxwell" flight demonstrator incorporates distributed electric propulsion technologies in a design that will achieve a significant reduction in energy used in cruise flight. A substantial portion of these energy savings come from beneficial aerodynamic-propulsion interaction.
Nicholas K. Borer +7 more
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Propulsive Performance of Morphing and Heaving Foil
Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering, 2022 Abstract Biological locomotion, observed in the flexible wings of birds and insects, bodies and fins of aquatic mammals and fishes, consists of their ability to morph the wings/fins. The morphing capability holds significance in the ability of fishes to swim upstream without spending too much energy and that of birds to glide for ...
Singh, Pragalbh Dev +3 more
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Experimental Methods for UAV Aerodynamic and Propulsion Performance Assessment [PDF]
INCAS Bulletin, 2015 This paper presents an experimental method for assessing the performances and the propulsion power of a UAV in several points based on telemetry.
Stefan ANTON, Petrisor PARVU
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Propulsive performance of plunging airfoils in biplane configuration
Physics of Fluids, 2022 Biplane configuration of pure plunging airfoils is investigated in terms of vortex dynamics both experimentally and numerically by utilizing particle image velocimetry and unstructured finite volume solver of incompressible unsteady Navier–Stokes equations.
S. B. Yucel, M. Sahin, M. F. Unal
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Journal of Marine Science and Engineering, 2022 In order to maximize the propulsion efficiency of flapping hydrofoil, a new method is proposed in this paper. The effects of heave amplitude, pitch amplitude, and the phase difference between heave and surge on propulsion performance were analyzed by ...
Zixuan Wang +5 more
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Experimental analysis of the effect of dynamic induction control on a wind turbine wake [PDF]
Wind Energy Science, 2022 Dynamic induction control (DIC) has proven to be an effective method of increasing the power output for a wind farm in both simulation studies and wind tunnel experiments.
D. van der Hoek +5 more
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Prediction of Propulsion Kinematics and Performance in Wheelchair Rugby
Frontiers in Sports and Active Living, 2022 Prediction of propulsion kinematics and performance in wheelchair sports has the potential to improve capabilities of individual wheelchair prescription while minimizing testing requirements.
David S. Haydon +8 more
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Propulsion performance of a skeleton-strengthened fin [PDF]
Journal of Experimental Biology, 2008 SUMMARYWe examine numerically the performance of a thin foil reinforced by embedded rays resembling the caudal fins of many fishes. In our study, the supporting rays are depicted as nonlinear Euler–Bernoulli beams with three-dimensional deformability.
Qiang, Zhu, Kourosh, Shoele
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Displaced geostationary orbit design using hybrid sail propulsion [PDF]
, 2011 Because of an increase in the number of geostationary spacecraft and the limits imposed by east–west spacing requirements, the geostationary orbit is becoming congested. To increase its capacity, this paper proposes to create new geostationary slots by
Becerra V. M. +14 more
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Propulsion system performance resulting from an Integrated Flight/Propulsion Control design [PDF]
Astrodynamics Conference, 1992 Propulsion-system-specific results are presented from the application of the integrated methodology for propulsion and airframe control (IMPAC) design approach to integrated flight/propulsion control design for a 'short takeoff and vertical landing' (STOVL) aircraft in transition flight.
DUANE MATTERN, SANJAY GARG
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