Results 1 to 10 of about 63,212 (197)
Multi-Objective Design of a Distributed Ducted Fan System
Aerospace, 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, Zhou Zhou
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A Study on Hover Performance of Ducted Fans for an Unmanned VTOL Aircraft
International Journal of Aerospace Engineering, 2022 In this study, ground tests and numerical analysis were performed to verify the hover performance of the second ducted fan model designed by this research team.
Young Jae Choi +2 more
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Numerical Prediction of Unsteady Aerodynamics of a Ducted Fan Unmanned Aerial Vehicle in Hovering
Aerospace, 2022 Recently, ducted fan unmanned aerial vehicles (UAVs) have attracted considerable attention due to their potential for application in both civil and military missions.
Hongming Cai +2 more
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An Efficient Blade Design Method of a Ducted Fan Coupled with the CFD Modification
Aerospace, 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, Zhou Zhou
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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 ...
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Noise-Source Identification for Ducted Fan Systems [PDF]
AIAA Journal, 2007 Coherence-based source analysis techniques can be used to identify the contribution of combustion noise in the exhaust of a jet engine and to hence enable the design of noise-reduction devices. However, when the combustion noise propagates in a nonlinear fashion, the identified contribution using ordinary coherence methods will be inaccurate.
BENNETT, GARETH, FITZPATRICK, JOHN AIDAN
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Aerodynamic Characteristics of a Ducted Fan Hovering and Transition in Ground Effect
Aerospace, 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 ...
Yanxiong Zhao, Yun Tian, Zhiqiang Wan
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Effect of inlet distortion with crosswind on aircraft-engine intake aerodynamic performance
Nihon Kikai Gakkai ronbunshu, 2022 This paper describes an experimental study on inlet distortion in the flow ingested to an intake of a ducted fan. Recent high bypass ratio engines tend to shorten the nacelle length for better fuel consumption.
Hiroki NARUSE +7 more
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Hangkong gongcheng jinzhan, 2018 With the development of aviation aircraft, the research on new aerodynamic configuration design has become the focus of power country in aviation. The actuator disk model applied in ducted fan based on self-developed “TRIsonic Platform”(TRIP 3.0) is ...
Yang Xiaochuan +4 more
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Strength Analysis of a Ducted Axial Fan Blade [PDF]
Problemy Mechatroniki, 2018 This paper presents a numerical strength analysis of a ducted axial fan blade. Ducted axial fans are a large group of fluid-flow machines. The analysis was designed to determine the causes of cyclic failures of a ventilation unit.
Marek ROŚKOWICZ +5 more
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