激光增强燃烧对使用URANS的RBCC发动机的影响
Wei-Rui Zhang1, Yuan-Shu Liu2, Xiang-Rui Zou2
1ChengDu Aeronautic Polytechnic, Chengdu, 610100, People's Republic of China.
Scientific reports
|December 3, 2024
概括
支持等离子体燃烧可在模式转换期间提高基于火箭的联合循环 (RBCC) 发动机性能. 这种创新方法提高了推力,并减少了单阶段到轨道飞行器的阻力和过渡时间.
科学领域:
- 航空航天工程 航空航天工程
- 等离子体物理学的物理学
- 燃烧科学 燃烧科学
背景情况:
- 基于火箭的联合循环 (RBCC) 发动机是单阶段到轨道飞行器的关键.
- 在RBCC发动机中,由于流量温度低,持续的低音速燃烧具有挑战性.
- RBCC发动机模式转换控制对于高效运行至关重要.
研究的目的:
- 调查使用等离子体燃烧支持在模式转换期间改善RBCC发动机性能.
- 分析多通道滑动弧 (MCGA) 等离子体辅助燃烧对RBCC发动机流量场的影响.
- 评估不同马赫数和过渡阶段等离子体支的有效性.
主要方法:
- 全路径RBCC发动机配置的数值模拟和验证.
- 对多通道滑动弧 (MCGA) 等离子体辅助燃烧技术的研究.
- 在从射出器/喷射器到喷射器/喷射器模式的转换过程中分析流场.
主要成果:
- 在低马赫数下,等离子体支增强热释放和火焰范围,增加推力和减少阻力.
- 在高马赫数下,等离子体支稳定了燃烧,减少了推力波动,缩短了过渡时间.
- 等离子体辅助燃烧可以提高发动机的整体推力,并在关键的过渡阶段降低阻力.
结论:
- 支持等离子体燃烧是一种可行的方法,可以在模式转换期间提高RBCC发动机性能.
- 对于在各种条件下运行的RBCC发动机来说,MCGA等离子技术提供了显著的优势.
- 这种方法解决了用于太空发射应用的RBCC发动机效率和运行稳定性的关键挑战.
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