On theory and methods for advanced detonation-driven hypervelocity shock tunnels

• 作者: Hongru Yu Jinping Li Yunfeng Liu Zonglin Jiang Zongmin Hu
• 来源期刊: 国家科学评论（英文版）
• 关键词: hypervelocity shock tunnel detonation driver flight condition tailored condition test facilities
• 年，卷（期）: 2020,（7）
• 页码范围: 1198-1207
• 页数: 10页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa050

摘要

This study describes theory and methods for developing detonation-driven shock tunnels in hypervelocity test facilities.The primary concept and equations for high-enthalpy shock tunnels are presented first to demonstrate the unique advantage of shock tubes for aerodynamic ground-based testing.Then,the difficulties in simulating flight conditions in hypervelocity shock tunnels are identified,and discussed in detail to address critical issues underlying these difficulties.Theory and methods for developing detonation drivers are proposed,and relevant progress that has advanced the state of the art in large-scale hypersonic test facilities is presented with experimental verifications.Finally,tailored conditions for detonation-driven shock tunnels are described,laying a solid foundation to achieve long test duration.Tnis interface-matching key issue encountered in developing shock tunnels has been investigated for decades,but not solved for detonation drivers in engineering applications.