Results 21 to 30 of about 11,322,797 (240)
Analysis of the performance and kinematics of the movement of UAV [PDF]
FME Transactions, 2023 The use of drones today has become an integral part of modern life to the extent that the level of drone utilization determines the quality of life. The expansion of drone applications has grown exponentially.
Miloš Marina, Mirosavljević Petar
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Ground effect aerodynamics of racing cars
, 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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Lifting-Line Predictions for Optimal Dihedral Distributions in Ground Effect
Applied SciencesWhen a flying wing comes within close proximity to the ground, a phenomenon called ground effect occurs where the lift is increased and the induced drag is decreased. This research seeks to determine the optimal dihedral distribution predicted by lifting-
Amanda K. Olsen +2 more
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Ground Effect in Fruit Fly Hovering: A Three-Dimensional Computational Study
Journal of Biomechanical Science and Engineering, 2013 In very few studies it is shown that an increase in vertical force can be achieved when a flapping-wing hovers in ground effect (IGE). The body, however, has usually been neglected and its influence on three-dimensional vortex structures and consequent ...
Masateru MAEDA, Hao LIU
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Numerical Study on Airfoil Aerodynamics in Proximity to Wavy Water Surface for Various Amplitudes
Applied Sciences, 2021 Wing–in–ground crafts will face waves with different amplitudes when flying over the ocean, and the high amplitude situations are especially lack of exploration.
Xing’an Liu +4 more
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Drones, 2023 The research topic of VTOL (vertical take-off and landing) fixed wing (VFW) is gaining significant attention, particularly in the transition phase from VTOL to fixed wing and vice versa. One of the latest and most challenging transition strategies is the
Erwhin Irmawan +2 more
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Ground Effect Influence on UAV Propeller Thrust: Experimental and CFD Validation
TechnologiesThis work investigates the influence of ground effect on the performance of a UAV propeller through a combined experimental, analytical, and numerical approach.
Mădălin Dombrovschi +4 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom +15 more
wiley +1 more source
Longitudinal Dynamic Characteristics of a Helicopter Rotor Blade: A Time-Based Modelling Method
Engineering ProceedingsThis article represents a numerical approach for estimating the helicopter rotor’s blade longitudinal dynamic characteristics considering several operational parameters.
Gabriel Georgiev
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Computational analysis of helicopter main rotor blades in ground effect [PDF]
Scientific Technical Review, 2016 Numerical investigation of an isolated representative helicopter main rotor has been performed in ANSYS FLUENT 16.2. In general, flow field around the rotor is unsteady, three-dimensional, complex and vortical.
Trivković Zorana +4 more
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