Electron Transpiration Cooling of Hypersonic Vehicles

高超声速飞行器的电子蒸腾冷却

• 批准号: LP180100107
• 负责人: Dr Rowan Gollan
• 金额: $ 33.54万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-12-06 至 2023-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP180100107
• 关键词: Electron; Transpiration; Cooling; Hypersonic; Vehicles

Future aircraft for flight at hypersonic speeds require sharp leading edges for the best aerodynamic performance. Sharp leading edges incur high heat loads and cannot be adequately cooled with current technologies. The project aim is to investigate novel surface materials that emit electrons when heated. This emission of electrons from the surface can significantly contribute to the cooling of the sharp leading edges. This project is expected to deliver new experimental data on novel surface materials exposed to a hypersonic flow environment and computer models that can simulate their cooling effect. This investigation will contribute towards enabling technologies for sustained hypersonic flight by overcoming critical head load limitations.

未来高超音速飞行的飞机需要尖锐的前缘以获得最佳的气动性能。尖锐的前缘产生高热负荷，并且不能用当前技术充分冷却。该项目的目的是研究在加热时发射电子的新型表面材料。这种从表面发射的电子可以显著地有助于冷却尖锐的前缘。该项目预计将提供有关暴露于高超音速流动环境的新型表面材料的新实验数据以及可以模拟其冷却效果的计算机模型。这项研究将有助于通过克服临界头载限制来实现持续高超音速飞行的技术。