Results 11 to 20 of about 765,164 (366)
An AI-in-Loop Fuzzy-Control Technique for UAV’s Stabilization and Landing
IEEE Access, 2022 In this paper, an adaptable fuzzy control mechanism for an Unmanned Aerial Vehicle (UAV) to manipulate its mechanical actuators is provided. The mission (landing) for the UAV is defined to track (land on) an object that is detected by a deep learning ...
Mohammed Rabah +3 more
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Circulation Control of Airfoil Aerodynamic Force Under Ground Effect of Wavy Wall
Shanghai Jiaotong Daxue xuebao, 2022 The interaction of airflow and sea waves seriously affects the flight stability and cruising safety of ground effect vehicles. The influence of different sea states and different angles of attack were analyzed numerically on the aerodynamic ...
LIU Hao, SUN Jianhong, SUN Zhi, TAO Yang, WANG Dechen, LIU Guangyuan
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Grounding as a Side‐Effect of Grounding [PDF]
Topics in Cognitive Science, 2018 AbstractIn relation to semantics, “grounding” has (at least) two relevant meanings. “Symbol grounding” is the process of connecting symbols (e.g., words) to perception and the world. “Communicative grounding” is the process of interactively adding to common ground in dialog. Strategies for grounding in human communication include, crucially, strategies
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Toward Hybrid CAA with Ground Effects [PDF]
International Journal of Aeroacoustics, 2014 CAA based on the Linearised Euler Equations (LEE) is applied to propagate aerodynamic sound over an extended distance including ground effects. The LEE are coupled to data from an LES via an acoustic analogy to follow-up the sound from the source to the extended far field: the complete chain is illustrated on the sound generated by a cylinder in a M ...
Jacob, Marc +4 more
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Ground effect aerodynamics of racing cars [PDF]
, 2006 We review the progress made during the last thirty years on ground effect aerodynamics associated with race cars, in particular open wheel race cars.
Zhang, Xin +5 more
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Ground effect analysis of a Formula SAE car [PDF]
, 2023 openThis thesis aims to investigate the ground effect behavior of the Formula SAE car, SGe-06, a competitive vehicle of the University of Padua during the academic year 2022/2023.
MINTO, ANTONIO
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On the origin of the ground effect
International Journal of Mechanical Engineering Education, 2023 The ground effect is well known to pilots and aerodynamicists alike. However, the current explanations found in undergraduate (and pilot-focused) textbooks can be inconsistent, often attributing the phenomena to the interaction between tip vortices at the ground.
Lisa Long, Jaime G Wong
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Numerical Simulation on Aerodynamics of Multi-Element Airfoil with Drooped Spoiler in Ground Effect
Xibei Gongye Daxue Xuebao, 2019 By using the finite volume method and k-ω SST turbulence model to solve the Reynolds Average Navier-Stokes equation and using the slipping wall to simulate the relative movement of the ground, the ground effect on the aerodynamic characteristic of multi ...
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Diffraction assisted rough ground effect. [PDF]
The Journal of the Acoustical Society of America, 2010 Ground effect results from the interference between sound traveling directly from a point source to a receiver and that reflected coherently from the ground. The frequencies associated with first and subsequent order destructive interference in excess attenuation spectra are determined by the source-receiver geometry and the ground impedance. Typically
Bashir, Imran +3 more
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Influence of diffuser angle on a bluff body in ground effect [PDF]
, 2003 The forces and pressures on a generic bluff body in ground effect were investigated. The bluff-body model was equipped with interchangeable underbody diffuser ramps and side plates. Five different diffuser angles were tested: 5, 10, 15, 17, and 20 deg to
Zhang, Xin, Ruhrmann, Andreas
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