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公开(公告)号:US06854687B1
公开(公告)日:2005-02-15
申请号:US10713515
申请日:2003-11-11
CPC分类号: B64C1/0009 , B64C7/02 , B64C30/00 , B64C2001/0045 , B64D27/18 , Y02T50/12
摘要: A method for integrating an engine nacelle below the wing of a supersonic aircraft with low sonic boom capabilities includes determining the shape of a reflexed portion of the airfoil on the underside of the wing, and a corresponding shape for the upper surface of the nacelle to provide favorable interaction between the wing and the nacelle. In some configurations, the reflex and/or the nacelle are shaped to maintain positive pressure under the reflexed portion of the wing, to the trailing edge of the wing. A gull dihedral wing is designed to form a partial shroud around the nacelle. Such configurations reduce drag at the trailing edge of the wing, and the force of the positive pressure on the gull dihedral wing portion provides additional lift that partially offsets drag from the nacelle.
摘要翻译: 将超音速飞机的机翼下方的发动机舱整合到具有低声波起重能力的方法包括确定机翼下侧翼型件的反射部分的形状以及机舱上表面的对应形状,以提供 机翼和机舱之间有利的相互作用。 在一些构造中,反射和/或机舱成形为在机翼的反射部分下保持正压力到机翼的后缘。 海鸥二面翼设计成在机舱周围形成部分护罩。 这种构造减少了在翼的后缘处的阻力,并且在鸥鸥二面翼部分上的正压力的作用力提供了额外的提升,其部分地抵消了从机舱的阻力。