Results 21 to 30 of about 10,974 (193)
Aerospace, 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
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Propulsion of a Molecular Machine by Asymmetric Distribution of Reaction Products [PDF]
Physical 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
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A laminar flow, propulsive, jet-flapped concept for electrically powered transport aircraft
Aviation, 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
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A contribution to the investigation of acoustic interferences in aircraft distributed propulsion [PDF]
CEAS Aeronautical Journal, 2023 AbstractThe objective of this work is to better understand the acoustic interferences created by distributed propulsion engines based on an approach that combines RANS simulation results for the aerodynamic prediction and analytical models to calculate acoustics. A multi-propeller configuration without wing is considered for this investigation.
Sébastien Guérin, Damiano Tormen
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Drones, 2023 The purpose of this paper is the evaluation of the aero-propulsive effects on a UAV wing model with distributed propulsion. An array of three propellers is placed ahead of the leading edge of a rectangular wing with flap.
Danilo Ciliberti +3 more
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Aerodynamics and Power Balance of a Distributed Aft-Fuselage Boundary Layer Ingesting Aircraft
Aerospace, 2023 This paper presents a first investigation into the aerodynamics and performance breakdown of a distributed aft-fuselage boundary layer ingesting (BLI) tube-and-wing aircraft using fully coupled Unsteady Reynolds-Averaged Navier-Stokes (URANS ...
Tze Sing Tse, Cesare A. Hall
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Numerical investigation of aerodynamic effects of distributed propulsion [PDF]
, 2022 The concept of distributed propulsion is to integrate the propulsion system with the airframe to exploit synergies of such a configuration. This report describes a CFD study of the aerodynamic effect of distributed propulsion.
Toniato, Pierpaolo
core
IEEE Access, 2023 This paper describes the design, experiments, and quantitative force comparison of a Pipe Inspection RObot named PI-RO II using the enhanced linear antagonistic mechanism to amplify the traction.
F. Ito +4 more
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Untethered Flight of a 270 mg Microrobot Powered by Onboard Energy
Advanced Intelligent Systems, 2023 It is challenging for microrobots to fly using onboard energy due to the relatively heavy power supplies and inefficient actuators that are limited to a small size (mass less than 1000 mg and wingspan less than 100 mm).
RuiDe Yun +7 more
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Xibei Gongye Daxue Xuebao, 2021 Focusing on the aerodynamic characteristics of the blended wing body (BWB) aircraft with boundary layer ingestion(BLI) distributed propulsion system; the influences of propulsion system parameters under the condition of cruise and takeoff are studied ...
doaj +1 more source