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Influencing Factors on Propulsive Performances of Water Droplets for Laser Propulsion
Journal of Propulsion and Power, 2010A transversely excited at atmospheric pressure CO 2 laser operated at 10.6 μm and 5 μs pulse width was employed to ablate atomized water droplets for laser propulsion. The momentum was derived from the force sensor data. Experimental results indicated that coupling coefficient C m , specific impulse I sp , and internal efficiency η were increased ...
Xiuqian Li +4 more
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Ocean Engineering, 2021
Abstract The present work compares the self-propulsion performance between vessels with single-screw propulsion and hybrid contra-rotating podded propulsion. The viscous flow fields of 4000 TEU container vessels with single-screw, single-rudder propulsion and hybrid contra-rotating propeller (CRP) podded propulsion systems were solved numerically by ...
Zhan-zhi Wang +3 more
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Abstract The present work compares the self-propulsion performance between vessels with single-screw propulsion and hybrid contra-rotating podded propulsion. The viscous flow fields of 4000 TEU container vessels with single-screw, single-rudder propulsion and hybrid contra-rotating propeller (CRP) podded propulsion systems were solved numerically by ...
Zhan-zhi Wang +3 more
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Unified Applicable Propulsion System Performance Metrics
Journal of Engineering for Gas Turbines and Power, 2013Progress in the development of electrical storage and conversion technology progressively attains focus in aerospace motive power research. Novel propulsion system concepts based on hybrid or even entirely electrical energy sources are seriously considered for aircraft design.
Oliver Schmitz, Mirko Hornung
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Hydrodynamic performance analysis of undulating fin propulsion
Physics of Fluids, 2023A desire to further comprehend the hydrodynamic characteristics of three-dimensional undulating fin propulsion is what motivates the work. First, a high-resolution numerical technique based on the constraint immersed boundary method is utilized to simulate the fluid-fin system.
Chang Wei +4 more
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Electric propulsion system performance evaluation
7th Electric Propulsion Conference, 1969Experimental program for tests to identify primary electric propulsion system integration problems and solutions, emphasizing design and initial ...
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Numerical analysis of the self-propulsion performance of seawater MHD propulsion underwater vehicle
Magnetohydrodynamics, 2023Prediction of the self-propulsion performance of seawater MHD underwater vehicles is of great significance for the design and rapid optimization of the vehicle. Based on a typical advanced two-pole superconducting magnet (with a large warm hole of 260 mm and a high magnitude of the magnetic field of 6.5 T) which is close to practical application, this ...
Xiaoqiang Chen +3 more
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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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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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