Journal ArticleDOI
Aerodynamic characteristics of an airfoil in a nonuniform wind profile
TLDR
In this paper, an experimental wind tunnel investigation was carried out to determine the influence of a nonuniform wind profile on the static longitudinal aerodynamic coefficients (c(, cd, cm) of an airfoil.Abstract:
An experimental wind tunnel investigation was carried out to determine the influence of a nonuniform wind profile on the static longitudinal aerodynamic coefficients (c(, cd, cm) of an airfoil. Force balance and surface pressure measurements were obtained from an NACA 0018 airfoil in a linear velocity gradient. The airfoil was tested in a Reynolds number range from 7.5x I04 to 2.0 x 105, with endplates to simulate an infinite wing, and with the outboard endplate removed to simulate a finite wing. The effect of grit on the surface of the airfoil was also investigated. The influence of the velocity gradient on the aerodynamic characteristics of the airfoil was found to be small, especially in comparison to the effects of the grit.read more
Citations
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Journal ArticleDOI
Lift on a steady 2-D symmetric airfoil in viscous uniform shear flow
TL;DR: In this paper, the influence of upstream shear on the viscous flow around a 2D symmetric airfoil at zero angle of attack, and the corresponding loads, was investigated.
Proceedings ArticleDOI
Numerical simulations of non-equilibrium hypersonic flow past blunt bodies
J. S. Shang,Eswar Josyula +1 more
Journal ArticleDOI
The Performance of a High-Lift Airfoil in Turbulent Wind
N. Cao,D. S-K. Ting,R. Carriveau +2 more
TL;DR: In this article, the performance of a prospective vertical axis wind turbine airfoil S1223 has been investigated at Reynolds numbers of 55,000, 75,000 and 100,000 at angles of attack from -5 to 25 deg in a quasi-isotropic turbulent flow generated using orificed plates.
Effects of turbulence intensity and integral length scale on an asymmetric airfoil at low Reynolds numbers
TL;DR: In this paper, the authors present a list of attributes of FIGURES and NOMENCLATURE, and a chapter of a book. But they do not specify the authorship of each attribute.
Proceedings ArticleDOI
Correction: Reynolds Number Effect on Lift Characteristics of an Airfoil Translating Across a Non-uniform Approach Flow
TL;DR: In this paper, the authors investigate the lift characteristics of a NACA-0012 airfoil which translates steadily across a non-uniform approach flow and show that the flow around the moving airfoils at AoA near stall is not quasi-steady.
References
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Journal ArticleDOI
Steady flow through non-uniform gauzes of arbitrary shape
TL;DR: In this article, the steady, two-dimensional flow through an arbitrarily-shaped gauze placed in a parallel channel is considered for the case in which viscosity can be ignored except in the immediate vicinity of the gauze.
Book ChapterDOI
Symmetrical Joukowsky airfoils in shear flow
TL;DR: In this article, a generalization of the well-known Blasius theorem for calculating aerodynamic forces acting on an airfoil is given, and the result is applied to the case of symmetrical Joukowsky airfoils and the final data are given in a number of tables and graphs.
An Experimental Investigation of Regions of Separated Laminar Flow
TL;DR: In this article, the results from an investigation of regions of separated flow caused by separation of the laminar boundary layer were presented. But the primary purpose was to obtain measurements that would define a large number of bubbles for a wide range of Reynolds numbers and pressure gradients.
Proceedings ArticleDOI
The effect of heavy rain on windshear attributed accidents
J. K. Luers,P. A. Haines +1 more
TL;DR: In this paper, a computer model that, when incorporated with a landing simulation program, was used to assess the relative influence of heavy rain versus wind shear in commercial aircraft accidents.