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Large-eddy simulation of airfoil flow near stall condition at Reynolds number 2.1 × 106
The Physics of Fluids, 2018This paper investigates an airfoil flow involving a turbulent transition and separations near the stall condition at a high Reynolds number Rec = 2.1 × 106 (based on the freestream velocity and the airfoil chord) and provides the wall-resolved large-eddy
K. Asada, S. Kawai
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Super-Lift and Thrusting Airfoil of Coflow Jet Actuated by Micro-Compressors
2018 Flow Control Conference, 2018This paper presents the wind tunnel experimental study of coflow jet (CFJ) active flow control airfoils actuated by micro-compressors embedded inside the airfoils. This is the first time that a CFJ airfoil is successfully controlled by the self-contained
Gecheng Zha +3 more
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1958
Publisher Summary The unsteady airfoil theory refers to the part of aerodynamics that considers the calculation of the pressure distribution over an airfoil moving with constant speed while performing an unsteady motion in the direction perpendicular to its plane.
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Publisher Summary The unsteady airfoil theory refers to the part of aerodynamics that considers the calculation of the pressure distribution over an airfoil moving with constant speed while performing an unsteady motion in the direction perpendicular to its plane.
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Airfoils and Airfoil Systems of Finite Span
1935The subject of this Chapter is the investigation of the forces experienced by an airfoil of finite span and by airfoil systems. The basic idea for the following deductions has been indicated at the end of III 32. The only point we have to add is that in the case of a single wing of ordinary type we may substitute the lift per unit span l for Λ (see III
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Complex dynamics of a conceptual airfoil structure with consideration of extreme flight conditions
Nonlinear dynamics, 2023Qi Liu, Yong Xu, Yongge Li
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Cylinder-Airfoil Interactions and the Effect on Airfoil Performance
2021From micro air vehicles flying in the wake of buildings to aircraft operating in ship airwakes, turbulent flows generate unsteady aerodynamic loads on airfoils that may promote structural failure, loss of flight control, and produce noise radiation. In order to develop engineering solutions capable of mitigating these effects, accurate force prediction
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Airfoil Design and Optimization
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2001AbstractThe aerodynamic efficiency of mildly swept wings is mainly influenced by the characteristics of the airfoil sections. The specific design of airfoils is therefore one of the classical tasks of aerodynamics. Since the airfoil characteristics are directly dependent on the inviscid pressure distribution the application of inverse calculation ...
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Unsteady flowfield and noise propagation due to transonic airfoil-airfoil interaction
AIAA Journal, 1998As a two-dimensional approximation to the outer region of a coaxial rotor, the flowfields induced by transonic airfoil-airfoil interaction are numerically simulated to investigate the aerodynamic and acoustic characteristics. The processes of aerodynamic load fluctuation are monitored with time for a transonic flowfield.
Kwanjung Yee, Dong-Ho Lee, Soogab Lee
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Structural And Multidisciplinary Optimization, 2020
M. Bouhlel, Sicheng He, J. Martins
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M. Bouhlel, Sicheng He, J. Martins
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Effect of airfoil thickness on gust–airfoil interaction noise
Physics of FluidsInteraction between turbulence and an airfoil is a significant aerodynamic noise source for many engineering applications when turbulence in the wake of upstream blades interacts with the leading edge of downstream blades. Modeling the oncoming turbulence as harmonic gusts is a common approach to study the noise generated by turbulence–airfoil ...
Shujie Jiang +5 more
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