Results 31 to 40 of about 4,154,170 (239)
Evaluation of the thrust of a ducted coaxial propfan
Авіаційно-космічна техніка та технологія, 2022 One of the basic requirements for existing and future aircraft engines is high specific power, low specific fuel consumption, and low noise level. The current work evaluates the thrust of a ducted coaxial propfan.
Vjacheslav Usenko +2 more
doaj +1 more source
, 2021 This research concerns a novel attitude stabilization structure for a ducted-fan aerial robot to work against modeling error and strong external transient disturbance, and it focuses on two main control targets: modeling error compensation, and the ...
W. Fan +4 more
semanticscholar +1 more source
Optimized Matching Lift Unit Transmission Ratio of Engine Driven Ducted Fan
MATEC Web of Conferences, 2018 As a kind of VTOL technology, ducted fan is not only used by many kinds of aircrafts, but also one of the trends of the future aircraft lift system, and attracts more and more attention. For an engine driven ducted fan lift unit, involving the engine and
Xiao Senlin +6 more
doaj +1 more source
Initial Sizing of a Tilt Ducted Fan Type eVTOL for Urban Air Mobility
Journal of the Korean Society for Aviation and Aeronautics, 2021 A large amount of time and cost is consumed due to congestions caused by an increasing number of cars which results in a lot of emissions. To overcome these problems, a new electric vertical takeoff and landing (eVTOL) aircraft is being considered. Since
Sang Gon Lee +3 more
semanticscholar +1 more source
Experimental and numerical studies on small contra-rotating electrical ducted fan engines
CEAS Aeronautical Journal, 2021 Electrical propulsion has been identified as one of the key fields of future research within the aerospace sector. The Institute of Aeronautical Engineering at the Universität der Bundeswehr München aims to contribute to the ongoing development of small ...
Tobias Ebus, M. Dietz, A. Hupfer
semanticscholar +1 more source
Machines, 2023 This paper deals with the problem of increasing the energy efficiency of a hybrid vertical take-off and landing aircraft. To this end, an innovative aerial vehicle was developed, featuring a distributed electrical propulsion system with ducted-fan rotors.
Juan Manuel Bustamante Alarcon +5 more
doaj +1 more source
Pengujian performa Electric Ducted Fan (EDF)
ARMATUR : Artikel Teknik Mesin & Manufaktur, 2022 EDF is an electric propulsion consists of a duct, fan, and electric motor with the motor power source coming from a battery which creates compression air for thrust. The design and configuration of an EDF is not complicated as a jet engine, but it could generate high thrust for highspeed flying like highspeed UAV needs. The preliminary design of an EDF
Satya Wicaksono, Buyung Junaidin
openaire +1 more source
Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]
, 2012 An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
Bakir +21 more
core +8 more sources
Aeroacoustics of a ducted fan ingesting an adverse pressure gradient boundary layer
Journal of Fluid MechanicsThe aeroacoustics of a boundary layer ingesting (BLI) ducted fan is investigated experimentally. The study examines a ducted fan immersed in an adverse streamwise pressure gradient turbulent boundary layer developed over a curved wall.
Feroz Ahmed +3 more
semanticscholar +1 more source
Aeroacoustic Simulations of an Axial Fan with Modelled Turbulent Inflow Conditions
International Journal of Turbomachinery, Propulsion and Power, 2023 In applications, the acoustics of fans can differ significantly from the measurements of the standalone fan. This is due to disturbed inflow conditions, for example, caused by a heat exchanger upstream of an axial fan.
Philipp Dietrich, Marc Schneider
doaj +1 more source