Journal ArticleDOI
Minimum swept-wing induced drag with constraints on lift and pitching moment.
TLDR
In this article, the authors defined the coefficients for span loading series and the reference area for coefficients, including aspect ratio, chord lift coefficient, and pitch-moment coefficient, as well as the nonelliptical portion of the span loading.Abstract:
A = coefficient for span-loading series CD = drag coefficient CL = lift coefficient CM = pitching-moment coefficient ACM = CM contributed by the nonelliptical portion of the span loading N = number of terms in the span-loading series S = reference area for coefficients a = aspect ratio b = span c = chord ci = section lift coefficient Cm = section pitching-moment coefficient m = mean aerodynamic chord x, y = longitudinal and lateral coordinates A = quarter-chord sweep angle 0 = transformed lateral coordinate, cos0 — —2y/b \ = taper ratioread more
Citations
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Journal ArticleDOI
Comparison of Theoretical and Multifidelity Optimum Aerostructural Solutions for Wing Design
TL;DR: In this article, the aerostructural research for aircraft design trends toward high-fidelity computational methods, and aerostructure solutions based on theory are often neglected or forgotten.
Journal ArticleDOI
Comparison of Theoretical and Multifidelity Optimum Aerostructural Solutions for Wing Design
TL;DR: In this article , a comparison of theoretical and high-fidelity solutions for the optimum wingspan and corresponding drag reveals important insights into the effects of certain aerodynamic and structural parameters and constraints on the aerodynamic coupling involved in aerostructural wing design and optimization.
References
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Book
The elements of aerofoil and airscrew theory
TL;DR: The aerofoil in three dimensions has been studied in this article, where Bernoulli's equation and the potential function are used to transform a circle into an acerofoil.
Book
Airplane Performance, Stability and Control
TL;DR: Airplane performance Stability and control, Airplane performance stability and control , مرکز فناوری اطلاعات و اشاوρزی
Book ChapterDOI
Theory of Maxima and Minima
TL;DR: The theory of ordinary maxima and minima as mentioned in this paper is concerned with the problem of finding the values of each of n independent variables x 1, x 2, …., x n at which some function of the n variables f (x 1, x 2, …., X n ) reaches either a maximum or a minimum (an extremum).
Related Papers (5)
Approximate solution of minimum induced drag of wings with given structural weight
Armin Klein,Sathy P. Viswanathan +1 more