在超音速燃烧室内注入燃料的不平等对齐喷嘴的影响
Zhongmian Fan1, Lingxiao Wang2, Fei Xu2
1School of Chemical Equipment, Shenyang University of Technology, Liaoyang, 111003, Liaoning, China. fan_zm@163.com.
Scientific reports
|June 4, 2024
概括
这项研究强调了非等式喷气器如何改善喷气发动机中的燃料分配. 矩形注入器增强了扩散,而圆形注入器有助于扩散,内部空气喷射提高了燃烧效率.
科学领域:
- 航空航天工程 航空航天工程
- 燃烧科学 燃烧科学
背景情况:
- 有效的燃料混合对于飞喷气发动机的性能至关重要.
- 不平等的多注入器系统是控制燃料分配和火焰稳定的关键.
研究的目的:
- 分析不平等的注入器系统对压喷气式燃烧器中燃料分配和火焰保持的影响.
- 在超音速交叉流条件下比较圆形和矩形喷气器的性能.
主要方法:
- 计算流体动力学 (CFD) 模拟用于建模超音速空气和燃料喷气相互作用.
- 分析马赫轮以可视化喷射接口和扩散特征.
- 评估内部空气喷气集成用于增强燃料混合.
主要成果:
- 长方形不平等的喷嘴显示了更高的燃料喷射扩散高度.
- 圆形喷嘴在散布燃料在整个燃烧器中被证明更有效.
- 添加一个内部喷气式喷气器显著改善了scramjet燃烧器内的燃料分配.
结论:
- 不平等的注入器设计,特别是矩形喷嘴,在压喷气应用中在燃料扩散方面提供了优势.
- 优化注射器几何形状和整合内部空气喷气对于提高scramjet燃烧效率至关重要.
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