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论文:2021,Vol:39,Issue(1):182-188 |
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引用本文： |
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王云, 范玮, 李红宾. 爆震管结构对脉冲爆震发动机性能影响研究[J]. 西北工业大学学报 |
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WANG Yun, FAN Wei, LI Hongbin. Study on effect of geometry on performance of pulse detonation rocket engines[J]. Northwestern polytechnical university |
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| 爆震管结构对脉冲爆震发动机性能影响研究 |
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| 王云, 范玮, 李红宾 |
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| 西北工业大学 动力与能源学院, 陕西 西安 710129 |
| 摘要: |
| 为了探究爆震管结构对无阀自适应式脉冲爆震火箭发动机性能的影响，采用汽油为燃料，富氧空气为氧化剂，对采用不同结构掺混段和障碍物的脉冲爆震火箭发动机进行了工作频率为20 Hz的无阀式多循环实验研究。研究结果表明，渐扩结构掺混段的使用可以缩短PDRE的DDT距离和DDT时间；螺旋凹槽和环形凹槽对DDT过程的加速效果较差；渐扩结构掺混段相较于突扩结构的掺混段有4.2%~7.2%的混合物比冲损失；使用突扩结构掺混段和Shchelkin螺旋的PDRE的混合物比冲最大，约为116.4 s。 |
| 关键词:
脉冲爆震火箭发动机
无阀
结构
DDT
推进性能
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| Study on effect of geometry on performance of pulse detonation rocket engines |
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| WANG Yun, FAN Wei, LI Hongbin |
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| School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China |
| Abstract: |
| In order to investigate the effect of the geometry on the performance of pulse detonation rocket engines under valveless self-adaptive working mode, the multi-cycle experiment was carried out on the pulse detonation rocket engines with different mixing sections and obstacles, while the operating frequency was 20 Hz. Gasoline was utilized as fuel, and oxygen-enriched air as oxidizer. Experimental results indicate that the DDT distance and DDT time of PDRE can be shortened by using the mixing section of gradual-expansion structure. The effect of the spiraling grooves and annular grooves on the DDT process is weak. The mixture-based specific impulse of the mixing section with gradual-expansion structure is 4.2%-7.2% lower than that of the mixing section with sudden-expansion structure. The mixture-based specific impulse of PDRE with sudden-expansion structure and Shchelkin spirals is the largest, about 116.4 s. |
| Key words:
pulse detonation rocket engines
valveless
geometry
DDT
propulsive performance
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| 收稿日期: 2020-05-19
修回日期:
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| DOI: 10.1051/jnwpu/20213910182 |
| 基金项目: 国家自然科学基金（51876179）资助 |
| 通讯作者:
Email： |
| 作者简介: 王云(1991-),西北工业大学博士研究生,主要从事脉冲爆震发动机研究。
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| 相关功能 |
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| 作者相关文章 |
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| 王云 在本刊中的所有文章 |
| 范玮 在本刊中的所有文章 |
| 李红宾 在本刊中的所有文章 |
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