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Extensions of the concept of suction analogy to prediction of vortex lift effect (1986)

Lan, C. E.

In: CASI

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Publication Date: 2019-06-28

Description: Flow field data for a double delta wing at low speed were used to determine the location of a vortex action point. The result was found to be consistent with what was determined for a delta wing. In supersonic flow, the action point location was determined empirically. For a wing with rounded leading edges, an assumption for initial vortex separation was shown to be equivalent to initial leading edge bubble separation for airfoils. A theoretical formulation by the section analogy to determine the delayed vortex separation on a cambered wing with rounded leading edges was presented. The method of suction analogy was further shown to be applicable to predicting the body vortex lift.

Keywords: AERODYNAMICS

Type: NASA. Langley Research Center Vortex Flow Aerodynamics, Vol. 1; p 65-84

Format: application/pdf

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