Results 11 to 20 of about 22,309 (312)
Lift coefficient estimation for a rapidly pitching airfoil [PDF]
Experiments in Fluids, 2021 We develop a method for estimating the instantaneous lift coefficient on a rapidly pitching airfoil that uses a small number of pressure sensors and a measurement of the angle of attack. The approach assimilates four surface pressure measurements with a modified nonlinear state space model (Goman-Khrabrov model) through a Kalman filter.
Xuanhong An +3 more
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Estimates for the Fourier coefficients of the Duke–Imamoglu–Ikeda lift
Forum Mathematicum, 2023 Abstract Let k and n be positive even integers. For a Hecke eigenform h in the Kohnen plus subspace of weight
Ikeda, Tamotsu, Katsurada, Hidenori
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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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Sectional Leading Edge Vortex Lift and Drag Coefficients of Autorotating Samaras
Aerospace, 2023 Autorotating samaras such as Sycamore seeds are capable of descending at exceptionally slow speeds and the secret behind this characteristic is attributed to a flow mechanism known as the leading edge vortex (LEV).
Byung Kwon Jung, Djamel Rezgui
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Wind Tunnel Experiments on an Aircraft Model Fabricated Using a 3D Printing Technique
Journal of Manufacturing and Materials Processing, 2022 Experimental tests regarding the M-346 aircraft model made via 3D printing were carried out in order to obtain numerical data and characteristics in the form of graphs of basic aerodynamic forces and coefficients.
Katarzyna Szwedziak +6 more
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Weierstrass coefficients of the canonical lifting [PDF]
International Journal of Number Theory, 2019 Given an ordinary elliptic curve [Formula: see text] over a field of characteristic [Formula: see text], there are functions [Formula: see text] and [Formula: see text] such that the curve [Formula: see text] where [Formula: see text] and [Formula: see text] is the canonical lifting of [Formula: see text].
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Fast Prediction of Multiple Parameters Related to Iced Airfoil Based on POD and Kriging Methods [PDF]
Journal of Applied Fluid Mechanics, 2022 Ice accretion threatens aircraft safety. With the wide application of unmanned aerial vehicles (UAVs), the design of ice-tolerant UAVs has become a problem that must be solved.
J. Niu +5 more
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Journal of Studies in Science and Engineering, 2022 The significance of using proper blade design is increasing with advancements in aviation technology. Wings are used in a variety of applications, including aircraft, drones, wind turbines, and more.
Mirza Haseeb Khalid
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MATEC Web of Conferences, 2018 Wings have a function of changing the air flowing into force lift, and drag. It can reduce the drag is fairing flap track, where its function can reduce the obstacles caused by the effects of compressibility, fairing flap track also has a major influence
Pratama Handrico Ramelan +1 more
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Experiments on the Drag and Lift Coefficients of a Spinning Sphere
Water, 2022 The drag and lift coefficients are important parameters that affect the particle motion in a viscous fluid. In the present study, the drag and lift coefficients of a spinning sphere in a water tank were studied experimentally using a high-speed camera.
Zhou, Shuang +2 more
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