Aerodynamic analysis and control for a novel coaxial ducted fan aerial robot in ground effect
International 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 ...
Tianfu Ai +4 more
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Aerodynamic analysis on unsteady characteristics of a ducted fan hovering in ceiling effect
Engineering Applications of Computational Fluid Mechanics, 2023 Ducted fans have been widely used in unmanned aerial vehicles (UAVs) for various operations due to the high efficiency, low noise and high safety. Proximity effects caused by the confined environment, including the ceiling effect (CE), bring significant ...
Yiwei Luo +7 more
semanticscholar +3 more sources
Aerodynamic analysis and modeling of coaxial ducted fan aircraft with the ceiling effect
Engineering Applications of Computational Fluid Mechanics, 2021 In this study, a novel coaxial ducted aircraft structure is considered, based on which the flow field with the ceiling effect under different vertical velocities and heights is obtained by exploiting the CFD (Computational Fluid Dynamics) numerical ...
Tianfu Ai +5 more
semanticscholar +3 more sources
CFD Study of an Annular-Ducted Fan Lift System for VTOL Aircraft
Aerospace, 2015 The present study aimed at assessing a novel annular-ducted fan lift system for VTOL aircraft through computational fluid dynamics (CFD) simulations. The power and lift efficiency of the lift fan system in hover mode, the lift and drag in transition mode,
Yun Jiang, Bo Zhang, Tao Huang
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Applied Sciences, 2015 The aerodynamic parameters of ducted fan micro aerial vehicles (MAVs) are difficult and expensive to precisely measure and are, therefore, not available in most cases. Furthermore, the actuator dynamics with risks of potentially destabilizing the overall
Shouzhao Sheng, Chenwu Sun
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Numerical simulation and analysis of a ducted-fan drone hovering in confined environments
Advances in AerodynamicsDucted-fan drones are expected to become the main drone configuration in the future due to their high efficiency and minimal noise. When drones operate in confined spaces, significant proximity effects may interfere with the aerodynamic performance and ...
Yiwei Luo +5 more
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On dynamic characteristics and stability analysis of the ducted fan unmanned aerial vehicles
International Journal of Advanced Robotic Systems, 2019 This article researches the improvement of dynamics stability of the ducted fan unmanned aerial vehicles by optimizing its mechanical–structure parameters.
Cheng Chen +3 more
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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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