Minimizing Induced Drag with Lift Distribution and Wingspan
TLDR
In this paper, minimum induced drag for fixed gross weight and wingspan is obtained from the elliptic lift distribution for steady level flight, but this is not obtained by imposing the constrain.Abstract:
Minimum induced drag for fixed gross weight and wingspan is obtained from the elliptic lift distribution. However, minimum induced drag for steady level flight is not obtained by imposing the const...read more
Citations
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Journal ArticleDOI
High aerodynamic lift from the tail reduces drag in gliding raptors.
James R. Usherwood,Jorn A. Cheney,Jialei Song,Jialei Song,Shane P. Windsor,Jonathan P J Stevenson,Uwe Dierksheide,Alex Nila,Richard J. Bomphrey +8 more
TL;DR: Aerodynamic lift from gliding hawk and owl tails, revealed by tracking helium bubbles, is inconsistent with passive stability or minimizing induced drag, but indicates a role in reducing viscous drag.
Proceedings ArticleDOI
Ludwig Prandtl’s 1933 Paper Concerning Wings for Minimum Induced Drag, Translation and Commentary
Journal ArticleDOI
Minimum Induced Drag for Tapered Wings Including Structural Constraints
Journal ArticleDOI
Aerodynamic efficiency of gliding birds vs comparable UAVs: a review
Christina Harvey,Daniel J. Inman +1 more
TL;DR: There is no definitive evidence that any gliding bird species is either more or less efficient than a comparable UAV, but species flying within subcritical Reynolds number regimes may inspire UAV designs that can extend their operational range to efficiently operate in subcritical regimes.
Journal ArticleDOI
Minimising induced drag with weight distribution, lift distribution, wingspan, and wing-structure weight
TL;DR: In this article, the authors presented analytic solutions for the optimum wingspan and wing-structure weight for rectangular wings with four different sets of design constraints, i.e., fixed lift distribution and net weight combined with fixed maximum stress and wing loading.
References
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TL;DR: In this article, the minimum induced drag of a wing having a given lift and a given span is extended to include cases in which the bending moment to be supported by the wing is also given.
Journal ArticleDOI
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Journal ArticleDOI
Minimizing induced drag with wing twist, computational-fluid-dynamics validation
TL;DR: In this article, a more practical analytical solution for the effects of wing twist on the performance of a finite wing of arbitrary planform has been presented, and the Fourier coefficients are presented in a form that depends only on wing geometry.