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Atmospheric Electric Propulsion Mission Performance Tool
Journal of Spacecraft and Rockets, 2014The amount of available propellant limits low-Earth orbit satellite lifetime due to the necessity of drag makeup. An electric propulsion device that uses in situ ions as propellants is considered as an alternative method for satellite drag makeup. This work presents a tool that consists of a one-dimensional thruster mathematical model integrated with ...
Scott T. King +2 more
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Aircraft Propulsion System Performance Nomenclature
2017<div class="section abstract"> <div class="htmlview paragraph">This SAE Aerospace Standard (AS) provides classical propulsion system performance parameter names for aircraft propulsion systems and their derivatives, and describes the logical framework by which new names can be constructed.</div></div>
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Analysis of bionic hydrofoil propulsive performance
2011 IEEE International Conference on Mechatronics and Automation, 2011Combined with the motion characteristics of turtles, a 2 degree-of-freedom periodic moving method is proposed for the single hydrofoil model of a hydrofoil propelled prototype. According to the hydrofoil hydrodynamic calculation formula, factors and motion parameters that affect thrust force produced by the hydrofoil are concluded.
Jian'an Xu, Na Yan, Mingjun Zhang
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Effect of chordwise flexibility on propulsive performance of high inertia oscillating-foils
Journal of Fluids and Structures, 2019We performed a parametric experimental study to quantify the effects of structural properties and kinematic parameters on the propulsive performance of a low-aspect ratio oscillating-foil at a chord-based Reynolds number of 80,000.
D. Iverson +4 more
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Plume flowfield and propulsive performance analysis of a rotating detonation engine
Aerospace Science and Technology, 2018Rotating detonation engine is a promising detonation-based propulsion system. In this paper, a series of numerical simulations of H2/air RDE are performed to show the plume flowfield of a RDE in detail and to obtain the pressure distribution on the end ...
Jian Sun +4 more
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Propulsive performance of a pair of pitching foils in staggered configurations
Journal of Fluids and Structures, 2018The propulsive performance and the wake interactions between a pair of pitching foils in several staggered configurations are studied experimentally. Results are limited to cases with in-phase and out-of-phase kinematics.
F. Huera-Huarte
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Journal of Fluids and Structures, 2018
During the predatory behaviour, the aquatic animals rapidly oscillate their fins to attack the preys or escape from the predators. In the light of this situation above, we experimentally investigate a chord-wise flexible foil pitching at the high ...
Li-Ming Chao +4 more
semanticscholar +1 more source
During the predatory behaviour, the aquatic animals rapidly oscillate their fins to attack the preys or escape from the predators. In the light of this situation above, we experimentally investigate a chord-wise flexible foil pitching at the high ...
Li-Ming Chao +4 more
semanticscholar +1 more source
Propulsive Performance Analysis of Underwater Flapping Multi-foil
Oceans, 2019In recent years, with an increasing interest in the underwater wave glider, which is propelled by converting the ocean wave energy into forward thrust through flapping multi-foil, the flapping-foil aerodynamics has become an important and popular topic ...
Huan Wang, X. Du, Baoshou Zhang
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Applied Ocean Research, 2019
The existing propulsor that can perform both propulsion and maneuvering along axis of rotation is propeller/rotor for a helicopter. Helicopter propellers when maneuvering increase or decrease their blades’ pitch cyclically to create imbalanced thrust and
M. Eskandarian, P. Liu
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The existing propulsor that can perform both propulsion and maneuvering along axis of rotation is propeller/rotor for a helicopter. Helicopter propellers when maneuvering increase or decrease their blades’ pitch cyclically to create imbalanced thrust and
M. Eskandarian, P. Liu
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Performance parameters for electric-propulsion systems.
Journal of Spacecraft and Rockets, 1966Electric spacecraft performance depends critically on the mass of the electric-propulsion system. The electric powerplant often is assumed to be the major component of such systems. It is shown, however, that when power conversion, power conditioning, and thrusters are included in mission analysis, the total effective specific mass aps*(kg/kwj) of the ...
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