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1. 发明授权

US06532728B1 Reducing skin friction drag 失效
标题翻译：降低皮肤摩擦阻力
公开(公告)号：US06532728B1
公开(公告)日：2003-03-18
申请号：US09693586
申请日：2000-10-20
申请人： Christopher Paul Goyne , Raymond John Stalker , Allan Paull
发明人： Christopher Paul Goyne , Raymond John Stalker , Allan Paull
IPC分类号： B63H1100
CPC分类号： F02K7/14
摘要： The skin friction drag acting on a surface of an article travelling at high speed such as a vehicle at supersonic or particularly hypersonic speed can be reduced by introducing a fuel into the boundary layer under conditions of the fuel introduction to ensure combustion in the boundary layer. The fuel is injected through orifice(s) or a slot provided at the surface so that the fuel enters the passing fluid with a major component of the direction of injection being parallel to the local flow direction. The fuel is injected at supersonic speed, e.g. at a speed of about Mach 1.5 or higher. The invention is applicable to scramjet engines with the fuel being injected around the entire internal circumference of the wall of the scramjet engine, upstream of the commencement of the combustion chamber.
摘要翻译：通过在燃料引入的条件下将燃料引入边界层中以确保边界层中的燃烧，可以减少作用在高速行驶的物品的表面上的皮肤摩擦阻力，例如车辆如超音速或特别是超音速。燃料通过孔或设置在表面处的槽注入，使得燃料进入通过的流体，其中注射方向的主要成分平行于局部流动方向。燃料以超音速喷射，例如，速度约为1.5马赫或更高。本发明可应用于在燃烧室开始之前燃料喷射在冲击式发动机的壁的整个内圆周周围的冲击式发动机。

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