Results 11 to 20 of about 1,794,273 (287)

Turboelectric Distributed Propulsion System Modelling [PDF]

open access: yes, 2013
The Blended-Wing-Body is a conceptual aircraft design with rear-mounted, over wing engines. Turboelectric distributed propulsion system with boundary layer ingestion has been considered for this aircraft.
Liu, Chengyuan
core   +7 more sources

Techno-economic and environmental risk assessment of a turbo-electric distributed propulsion system on a blended wing body aircraft [PDF]

open access: yes, 2014
Constant rise of air traffic has caused the environmental impacts of aviation to be the subject of an unprecedented scrutiny. Organisations all over the world are setting targets for emission reductions that represent the technological potential for ...
Giakoumakis, Eleftherios
core   +7 more sources

Concept and Performance Analysis of Propulsion Units Intended for Distributed Ship Systems

open access: yesJournal of Marine Science and Engineering, 2022
Limited navigation depth, especially on inland waterways, is one of the main limiting factors that shorten the navigation period. Distributed propulsion systems represent an opportunity to increase the navigability of ships across critical sections of ...
Ladislav Illes   +6 more
doaj   +1 more source

Scalability of Mach Number Effects on Noise Emitted by Side-by-Side Propellers

open access: yesApplied Sciences, 2022
This paper presents a numerical investigation of noise radiated by two side-by-side propellers, suitable for Distributed-Electric-Propulsion concepts. The focus is on the assessment of the variation of the effects of blade tip Mach number on the radiated
Caterina Poggi   +3 more
doaj   +1 more source

Wing Structural Model for Overall Aircraft Design of Distributed Electric Propulsion General Aviation and Regional Aircraft

open access: yesAerospace, 2021
In the context of reducing the environmental footprint of tomorrow’s aviation, Distributed Electric Propulsion (DEP) has become an increasingly interesting concept.
Raquel Alonso Castilla   +3 more
doaj   +1 more source

Optimization and Analysis of Hybrid Electric System for Distributed Propulsion Tilt-Wing UAV

open access: yesIEEE Access, 2020
Hybrid electric distributed propulsion tilt-wing UAVs show unlimited application prospects due to their high propulsion efficiency and vertical take-off and landing capabilities.
Cheng He, Yuhong Jia, Dongli Ma
doaj   +1 more source

A laminar flow, propulsive, jet-flapped concept for electrically powered transport aircraft

open access: yesAviation, 2023
Friction drag constitutes approximately half of the total drag of subsonic civil transport aircraft at cruise conditions. Several means were examined to control the flow over an aircraft and achieve laminar flow.
Nikolaos Kehayas
doaj   +1 more source

Comparison of Aero-Propulsive Performance Predictions for Distributed Propulsion Configurations [PDF]

open access: yes55th 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
openaire   +1 more source

Improvement of Take-Off Performance for an Electric Commuter Aircraft Due to Distributed Electric Propulsion

open access: yesAerospace, 2023
The need for environmentally responsible solutions in aircraft technology is now considered the priority for global challenges related to the limited supply of traditional fuel sources and the potential global hazards associated with emissions produced ...
Vincenzo Cusati   +3 more
doaj   +1 more source

Propulsion of a Molecular Machine by Asymmetric Distribution of Reaction Products [PDF]

open access: yesPhysical Review Letters, 2005
A simple model for the reaction-driven propulsion of a small device is proposed as a model for (part of) a molecular machine in aqueous media. Motion of the device is driven by an asymmetric distribution of reaction products. The propulsive velocity of the device is calculated as well as the scale of the velocity fluctuations.
Golestanian, Ramin   +2 more
openaire   +6 more sources

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