Results 251 to 260 of about 9,942,018 (291)

Performance of an aerospace plane propulsion nozzle

Journal of Aircraft, 1991
A novel inviscid and viscous analysis is provided for a nozzle that is used with a scramjet for thrust generation. The analysis is based on the theory of a two-dimensional minimum length nozzle with a curved inlet surface, where the flow is sonic or supersonic. Inlet conditions are prescribed and the gas is assumed to be perfect.
Yoon-Yeong Bae, George Emanuel
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Titan III propulsion system performance evaluation.

Journal of Spacecraft and Rockets, 1968
An acceleration- based procedure for accurate determination of propulsion system performance from flight daja is described in this paper. The procedure emplpys iteration techniques to achieve a weighted least-squares ("best") fit to all of the applicable flight data.
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Measurement of propulsive power and evaluation of propulsive performance from the wake of a self-propelled vehicle

Bioinspiration & Biomimetics, 2006
Propulsive efficiency is a key indicator of propulsive performance, but it can be difficult to measure when the propulsion system is integrated into the vehicle body because the average rate of useful work done propelling the vehicle (Wu) and/or the average mechanical power expended propelling the vehicle (Pmech) is not known directly.
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Optimization of the propulsion system and performance analysis

2022
Ottimizzazione geometria del ...
Riccardo Pellegrini, Antonio Posa, Riccardo Broglia, Matteo Diez   +3 more
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Hybrid Rocket Propulsion Performance Prediction

41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2005
The work performed in this effort used previously measured experimental subscale hybrid propellant data to develop a ground test motor in the 1000 pound-force range. This ground test motor was test fired and the test data was used to finalize a motor fuel grain geometry configuration and an oxidizer injector geometry. The ground tests were then used to
Robert Cavalleri, Richard Loehr
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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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Performance parameters for electric-propulsion systems.

Journal of Spacecraft and Rockets, 1966
Electric 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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Performance verification of the Eurostar propulsion subsystem

Journal of Spacecraft and Rockets, 1990
Following the design of the EUROSTAR bipropellant combined propulsion subsystem (CPS), a test program has been undertaken to assess performance to and validate supporting analyses. The program has involved both simulant, cold-flow tests and live, propellant firings using flight standard hardware.
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Electric propulsion system performance evaluation

7th Electric Propulsion Conference, 1969
Experimental program for tests to identify primary electric propulsion system integration problems and solutions, emphasizing design and initial ...
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Numerical Analysis on the Propulsive Performance of Oscillating Wing in Ground Effect

Applied Ocean Research, 2021
Yongcheng Li, Ziying Pan
exaly