Results 171 to 180 of about 162,037 (197)

Aerodynamic design via optimization

Journal of Aircraft, 1992
An aerodynamic design optimization method is presented that generates an airfoil, producing a specified surface pressure distribution at a transonic speed. The design procedure is based on the coupled Euler and boundary-layer technology to include the rotational viscous physics which characterizes transonic flows.
K. D. Lee, S. Eyi
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Optimum Design in Aerodynamics *

IFAC Proceedings Volumes, 1983
Abstract We use optimal control methods to solve a free boundary constrained problem. The boundary is considered as a control ; the constraint is written as a criterion that we must minimize. But we cannot already hope to demonstrate the existence and uniqueness of a solution to this problem, since the existing theories only consider a convex ...
D. Volpert, D. Kalfon
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Computational Aerodynamic Design Optimization

Volume 6: Turbo Expo 2003, Parts A and B, 2003
Quasi-1D Euler equations have a considerable part of research to allow the prediction of the internal and external flows of the aerodynamic applications. Numerical solving of these equations by a so-called computational fluid dynamics (CFD) finds a very close agreement of the flow solver regarding to the experimental tests. Using CFD in the aerodynamic
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Aerodynamic Design and Performance

Aircraft Engineering and Aerospace Technology, 1965
An Outline of the Basic Configuration and Aerodynamic Features of the Argosy including Performance and Flight Handling Qualities. THE basic concept of the Argosy as a medium‐size freighting aircraft with a large capacity fuselage of high cross sectional area and low freight floor defined to a large extent the shape of the aircraft.
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Turbine Aerodynamic Design and Off-Design Performance

2005
The turbine component is the power generator in a gas turbine system. As briefly discussed in Chapter 12, within a turbine component, an exchange of mechanical energy (shaft work) with the surroundings takes place. In contrast to compressors, the total energy of the working medium is partially converted into shaft work, thus supplying necessary power ...
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Unducted Fan Aerodynamic Design

Journal of Turbomachinery, 1987
A method being used to design unducted fans, which are counterrotating propellers with unusually high disk loadings, is described. The quasi-three-dimensional approach employed is similar to that used for ducted fan designs; it consists of a circumferential-average flowfield analysis followed by cascade designs that include secondary flow and sweep ...
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Aerodynamic Design

ATZextra worldwide, 2009
Carsten Repmann, Tobias Tinschert
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Aerodynamic Design Of Helicopters.

1955
PhD ; Aerospace materials ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/181495/2/0011377 ...
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Aerodynamic design with cfd

1991
Corporate average fuel economy (CAFE) regulations have placed a high priority on aerodynamic efficiency for automobiles. While the wind tunnel will continue to play a vital role, computational fluid dynamics (CFD) holds the promise of bringing aerodynamics into the design process much earlier and less expensively. On May 3, 1991 Gary S.
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Computer-aided design: aerodynamics

The Aeronautical Journal, 1979
In recent years, there have been rapid advances in the development of theoretical methods in aerodynamics, particularly for transonic flow calculations. Many papers have been written on this topic. It is however appropriate that there should now be a paper that concentrates not so much on the methods themselves but on the use of the methods for ...
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