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Propulsion

About: Propulsion is a research topic. Over the lifetime, 24977 publications have been published within this topic receiving 200311 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, the authors describe the application of quasi-LPV modeling techniques to an industrial military turbofan engine simulator developed by Snecma Moteurs, the French aerospace propulsion company.

60 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present technology aspects and choices relative to worldwide MAGLEV projects such as the German Transrapid, the Japanese MLX, the USA Inductrack and the Swissmetro.
Abstract: This papers presents technology aspects and choices relative to worldwide MAGLEV projects such as the German Transrapid, the Japanese MLX, the USA Inductrack and the Swissmetro. Propulsion, magnetic levitation and guidance, transfer of energy to the vehicle are investigated.

59 citations

Journal ArticleDOI
04 Nov 2017
TL;DR: In this paper, two electrical/chemical propulsion concepts developed over the last 5 years and discussed how they could be used to humanize the solar system. But, they did not discuss how to use nuclear fusion energy as a viable alternative to current energies.
Abstract: The advances in solar technology and electric propulsion now offer the promise of new, very capable space transport systems that will allow us to effectively explore the solar system. NASA has developed many concepts of space-powered spacecraft with power levels ranging from tens to hundreds of kilowatts for robotic and asteroid-driven missions and Mars. This paper describes two electrical/chemical propulsion concepts developed over the last 5 years and discusses how they could be used to humanize the solar system. A possible sustainable solution for the supply of spacecraft power would be to achieve and utilization nuclear fusion energy. The paper briefly presents some contributions to obtaining nuclear fusion energy as a viable alternative to current energies. For the energy of spacecraft of the future, the combination of photovoltaic energy (obtained from the stars) and that produced by a nuclear reactor on fusion is essential. NASA is developing a strategy to send a crew to Mars by 2030. To achieve this goal, NASA plans to develop the technology for long-haul flights including advanced transportation work and living systems. Among these technologies, Solar Electric Propulsion (PES) has been identified as very effective in moving large masses through interplanetary space. For decades it has been known that missions outside the low Earth's orbit can be made cost-effective by PSA, but yet such space missions have not yet been done because the manufacturing technology is not advanced enough. NASA's recent investments in solar power systems and propulsion systems have now matured so that the 50 kW PSA is already ready to be put on flight missions. It has been demonstrated analytically that these technologies can be resized to systems with the power of several hundred kilowatts.

59 citations

Journal ArticleDOI
TL;DR: In this paper, the fundamental aerodynamics and flow regions of cross-flow fans using a simple mean-line analysis were examined, and experimental data for fans intended for aircraft application were reviewed and compared to calculations using unsteady Navier-Stokes methods, showing the state-of-the-art in flow field and performance prediction capability.

59 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,085
20222,061
2021739
20201,050
20191,194
20181,187