Biomimetic spiroid winglets for lift and drag control
| Autor: | Alessandro Bottaro, Dario Maestro, Joel Guerrero |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Marketing
Lift-to-drag ratio Engineering Wing Lift-induced drag business.industry Strategy and Management Spiroid winglets Mechanical engineering Aerodynamics Computational fluid dynamics Flow control (fluid) Drag Biomimetics Drag reduction Media Technology General Materials Science Zero-lift drag coefficient Wingtip device business Computational fluid dynamics Spiroid winglets Lift-induced drag Drag reduction Biomimetics Marine engineering |
| Popis: | a b s t r a c t Article history: Available online 30 December 2011 In aeronautical engineering, drag reduction constitutes a challenge and there is room for improvement and innovative developments. The drag breakdown of a typical transport aircraft shows that the lift-induced drag can amount to as much as 40% of the total drag at cruise conditions and 80-90% of the total drag in take-off configuration. One way of reducing lift-induced drag is by using wingtip devices. By applying biomimetic abstraction of the principle behind a bird's wingtip feathers, we study spiroid wingtips, which look like an extended blended wingtip that bends upward by 360 degrees to form a large rigid ribbon. The numerical investigation of such a wingtip device is described and preliminary indications of its aerodynamic performance are provided. |
| Databáze: | OpenAIRE |
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