Minimizing hypersonic skin-friction by boundary-layer combustion

通过边界层燃烧最大限度地减少高超音速表面摩擦

• 批准号: ARC : DP0208744
• 负责人: David Mee
• 金额: $ 28.4万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/minimizing-hypersonic-skin-layer-combustion/68781
• 关键词: Minimizing; hypersonic; skin; friction; boundary

Minimizing hypersonic skin-friction by boundary-layer combustion. The high drag associated with hypersonic flight has been a major obstacle to development of hypersonic aircraft. It is generally accepted that half the drag of hypersonic vehicles will be caused by air friction on the aircraft's skin, due mainly to the turbulent boundary layer which forms on the skin. However, a new method of reducing skin friction, by injecting and burning fuel in the boundary layer, has been discovered. This project is aimed at investigating the range of conditions under which this method will be effective. By this boundary-layer "lubrication" much more efficient hypersonic flight will be possible.

通过边界层燃烧最小化高超声速表面摩擦。高超声速飞行的高阻力一直是高超声速飞机发展的主要障碍。人们普遍认为，高超声速飞行器的一半阻力将由飞机蒙皮上的空气摩擦引起，这主要是由于蒙皮上形成的湍流边界层。然而，已经发现了一种通过在边界层中喷射和燃烧燃料来减少表面摩擦的新方法。这个项目的目的是调查这种方法有效的条件范围。通过这种边界层“润滑”，更有效的高超声速飞行将成为可能。