The Minimum Induced Drag of the Hemi-Circular Ground Effect Wings
Hiroshi Mamada,Shigenori Ando +1 more
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In this paper, the induced drag of a front view wing with both tips in close proximity to the ground surface was considered for a hemicircular front-view wing with the lifting line theory.Abstract:
The induced drag is considered for a hemicircular front view wing with both tips in close proximity to the ground surface, using the lifting line theory. The integral equation is exactly treated and, assuming that the lift distribution is optimum, the exact expression of the span efficiency factor is obtained. Also, the lift distribution is discussed analytically and numerically.read more
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Wing-in-ground effect vehicles
TL;DR: In this article, a survey of the research and development of wing-in-ground effect technology is presented, starting with definitions of the phenomenon and the craft which takes advantage of the ground effect (GE), the history and perspectives of the technology, specific vehicles and projects, and areas of application.
Journal ArticleDOI
Lifting-Line Predictions for Induced Drag and Lift in Ground Effect
TL;DR: In this article, closed-form relations for the induced-drag and lift coefficients acting on a wing in ground effect to those acting on the same wing outside the influence of ground effect are presented.
Journal Article
Numerical investigation of airfoil in ground proximity
TL;DR: In this article, the authors present numerical investigation of the ground effect which affects an air flow when a craft's wing approaches the ground or sea surface. And they propose an empirical formula for quantitative assessment of the chord dominated ground effect.
References
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Journal ArticleDOI
Wing-in-ground effect vehicles
TL;DR: In this article, a survey of the research and development of wing-in-ground effect technology is presented, starting with definitions of the phenomenon and the craft which takes advantage of the ground effect (GE), the history and perspectives of the technology, specific vehicles and projects, and areas of application.
Journal ArticleDOI
Lifting-Line Predictions for Induced Drag and Lift in Ground Effect
TL;DR: In this article, closed-form relations for the induced-drag and lift coefficients acting on a wing in ground effect to those acting on the same wing outside the influence of ground effect are presented.
Journal Article
Numerical investigation of airfoil in ground proximity
TL;DR: In this article, the authors present numerical investigation of the ground effect which affects an air flow when a craft's wing approaches the ground or sea surface. And they propose an empirical formula for quantitative assessment of the chord dominated ground effect.