Aerodynamic structure with non-uniformly spaced shock bumps

Details Aerodynamic structure with non-uniformly spaced shock bumps Aerodynamic structure with non-uniformly spaced shock bumps

B - Operations, Transporting

64

C

B64C 23/04 (2006.01)

Patent

CA 2713360

An aerodynamic structure comprising a series of shock bumps (3) extending from its surface. The shock bumps are distributed across the structure with a non-uniform spacing (d1, d2) between the centres and/or edges of adjacent bumps. The non--uniform spacing between the bumps can be arranged to give maximum wave drag alleviation for the minimum number of bumps as a function of the shock strength across the span, leading to minimum wing weight penalties for a given amount of wave drag al-leviation.

La présente invention concerne une structure aérodynamique comportant à sa surface une série de bosses antichocs. Les bosses antichocs sont réparties sur la structure avec un espacement non uniforme entre les centres et/ou les bords de bosses adjacentes. L'espacement non uniforme entre les bosses peut être configuré de manière à obtenir une atténuation maximale de la traînée d'onde pour un nombre minimal de bosses, en fonction de l'intensité du choc sur l'envergure, ce qui conduit à des surcharges minimales sur l'aile pour une atténuation donnée de la traînée d'onde.

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