Results 141 to 150 of about 9,266,844 (203)

Enhancing vehicle performance through the application of airfoils as spoilers with movable trailing edge. [PDF]

F1000Res
Karaki A, Abu Sirreya M, Zalloum M, Amro H.   +3 more
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Design and Interlaminar Stress Analysis of Composite Fan Blade Shank. [PDF]

Polymers (Basel)
Wu Y, Zhang Y, Wang Z, Jin L, Tang X, Li X, Chen Y.   +6 more
europepmc   +1 more source

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Design of a supercritical airfoil

Journal of Aircraft, 1988
This article treats the development of several transonic airfoils. The initial design, NPU2, was based on a specified shockless pressure distribution at given design conditions which were Mach number, Reynolds number, and lift coefficient. Wind-tunnel tests substantiated the design. They showed up, however, weak shock waves.
Z. Y. Zhang, X. T. Yang, B. Laschka
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Airfoil Design and Optimization

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2001
AbstractThe 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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Design of airfoils and cascades of airfoils

AIAA Journal, 1989
This paper presents a method for generating blade shapes to be used as inputs to the direct- or inverse-bladedesign sequences. This method can generate subsonic or supersonic blades for compressors and turbines, or isolated airfoils, but the discussion in this paper is limited to subsonic-exit turbine blade rows. Gas-turbine blades are usually designed
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A multipoint inverse airfoil design method for slot-suction airfoils

13th Applied Aerodynamics Conference, 1995
Owing to a renewed interest in advanced-concept transport aircraft with active boundary-layer control (suction and/or blowing), a generalized multipoint method for the inverse design of airfoils with slot suction in incompressible potential flow is presented. The results predicted by theory show good agreement with experiment.
Farooq Saeed, Michael S. Selig
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Airfoil design by optimization

Journal of Aircraft, 1977
An airfoil design technique is described which uses an analytical method for representing the airfoil contour by Wagner functions and a computational procedure for obtaining the values of the coefficients of expansion. The method for approximating an airfoil contour by a Fourier-type series of Wagner functions is briefly outlined, and a flow chart for ...
P. Ramamoorthy, K. Padmavathi
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On the Design of Thin Subsonic Airfoils

Journal of Applied Mechanics, 1979
The inverse problem, which determines an airfoil geometry given some specified surface pressure, is considered in the subsonic, thin-airfoil limit. The full governing equations are expanded in powers of the thickness ratio and solved to second-order.
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Airfoil Design in Subcritical and Supercritical Flows

Journal of Applied Mechanics, 1979
The “inverse” or “design” problem in aerodynamics, which solves for the airfoil shape that induces a prescribed chordwise surface pressure subject to additional requirements on trailing edge closure, is considered in the transonic small-disturbance limit. A new formulation for the stream function ψ is suggested which uses well-set Neumann conditions on
Chin, W. C., Rizzetta, D. P.
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Breeder genetic algorithms for airfoil design optimisation

Proceedings of IEEE International Conference on Evolutionary Computation, 2002
In this paper a version of genetic algorithms, the breeder genetic algorithms, suitable for continuous parameter optimisation, has been applied and compared to a classical discrete genetic algorithm. The application concerns a typical optimisation problem in aerodynamics, the problem of determining the coordinates of an airfoil given a surface pressure
De Falco I, Del Balio R, Della Cioppa A, Tarantino E   +3 more
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