Results 1 to 10 of about 2,542 (201)

Numerical Prediction of Unsteady Aerodynamics of a Ducted Fan Unmanned Aerial Vehicle in Hovering [PDF]

open access: goldAerospace, 2022
Recently, ducted fan unmanned aerial vehicles (UAVs) have attracted considerable attention due to their potential for application in both civil and military missions.
Shuanghou Deng
exaly   +4 more sources

An Efficient Blade Design Method of a Ducted Fan Coupled with the CFD Modification [PDF]

open access: goldAerospace, 2022
In order to improve the design accuracy of the blade design method of a ducted fan based on the blade element momentum theory, the design was modified by the CFD calculation with higher accuracy to propose an integrated and efficient design method for ...
Jiahao Guo
exaly   +4 more sources

Optimized Matching Lift Unit Transmission Ratio of Engine Driven Ducted Fan [PDF]

open access: diamondMATEC 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   +2 more sources

Multi-Objective Design of a Distributed Ducted Fan System

open access: yesAerospace, 2022
The distributed propulsion system applied to the vertical take-off and landing aircraft must maintain the high performance in both hover and cruise flight.
Jiahao Guo
exaly   +3 more sources

A Modular 3D-Printed Ducted-Fan Platform for Advanced Autonomy Research: From Design to Flight Test

open access: goldDrones
Following the growing interest in small-scale unmanned aerial vehicles (UAVs), this paper presents a comprehensive conceptual design methodology for a modular ducted-fan aerial vehicle intended for research applications.
Andrea Dan Ryals   +5 more
doaj   +2 more sources

Aerodynamic analysis and control for a novel coaxial ducted fan aerial robot in ground effect

open access: yesInternational Journal of Advanced Robotic Systems, 2020
Modeling and control for a novel coaxial ducted fan aerial robot in-ground-effect is presented in this article. Based on experiments using the ducted fan bench test, the fitting curve of the ground effect thrust of the ducted fan aerial robot at ...
Bin Xu, Tianfu Ai, Changle Xiang
exaly   +2 more sources

Aerodynamic Characteristics of a Ducted Fan Hovering and Transition in Ground Effect

open access: yesAerospace, 2022
Ducted fans installed on vertical takeoff and landing vehicles experience significant ground effect during takeoff and landing. The aerodynamic characteristics of a ducted fan hovering and transitioning in the ground effect are studied using numerical ...
Zhiqiang Wan
exaly   +3 more sources

Performance Evaluation of an H-VTOL Aircraft with Distributed Electric Propulsion and Ducted-Fans Using MIL Simulation [PDF]

open access: goldMachines, 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   +2 more sources

A Conceptual Design and Optimization Approach for Distributed Electric Propulsion eVTOL Aircraft Based on Ducted-Fan Wing Unit

open access: yesAerospace, 2022
The distributed electric propulsion (DEP) eVTOL aircraft has gained rising interest for its promising potential in high-speed cruise compared with conventional tilt-rotor configuration.
Jingcheng Fu
exaly   +3 more sources

Aerodynamic Characteristics of Ducted Propulsion Fan Using Secondary Air Intake [PDF]

open access: goldEng
Ducted propulsion fans are widely recognized for their ability to enhance aerodynamic efficiency and operational safety by utilizing a surrounding shroud to contain the flow and mitigate blade tip losses.
Thai-Son Vu   +4 more
doaj   +2 more sources

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