| 摘要: |
| 为使燃用液体燃料的大管径气动阀式脉冲爆震发动机点火及起爆成功,设计了多种结构的强化燃烧装置。包括半V型扩焰器、环型扩焰器和环型+径向扩焰器。通过多种不同结构扩焰器在脉冲爆震发动机上的试验结果表明,采用各种强化燃烧装置后,能显著提高点火成功率,加速紊流火焰的传播,且带径向的扩焰器较之环型的扩焰器,更能有效缩短DDT距离,但带来的阻力损失增加。 |
| 关键词: 脉冲爆震发动机 气动阀 扩焰器+ 试验 |
| DOI： |
| 分类号:V235.22 |
| 基金项目: |
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| Experimental investigation on devices of flame spreading in pulse detonation engine |
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FAN Yu-xin, WANG Jia-hua, LI Jian-zhong, ZHANG Yi-ning
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Coll.of Energy and Power,Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,China
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| Abstract: |
| Several kinds of devices including semi-V,annular and annular plus radial type were designed to spread flame and enhance combustion in order to ignite and detonate successfully in a two-phase aerovalve large-scale pulse detonation engine.Tests on these devices suggest that PDE can ignite much successfully and the turbulent flame can propagate faster with these devices than without.Among these parts,the annular plus radial type is the most effective structure,but the loss is the most. |
| Key words: Pulse detonation engine Pneumatic valve Device of flame spreading~+ Test |
