| 摘要: |
| 为了分析谐振管中气体温度在射流的长时间作用下能升高至某定值但不能无限升高的原因,针对由声速喷嘴和圆柱形谐振管组成的系统,利用激波理论对圆柱形谐振管中周期性运动的激波与膨胀波对气体的作用进行分析,认为激波使管中气体温度升高、膨胀波使气体温度降低,它们的周期性作用使管中气体温度能够累积升高,随着气体温度的升高,激波的加热作用减弱,并最终消失,管中气体温度达到某定值。 |
| 关键词: 谐振 激波 膨胀波 气动加热 理论 |
| DOI： |
| 分类号:V434.11 |
| 基金项目:国家自然科学基金项目(59906001)。 |
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| Theoretical analysis on gas-dynamic resonance phenomenon in cylindrical resonance tube |
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TONG Xiao-yan, LIANG Guo-zhu, ZHANG Guo-zhou
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School of Astronautics, Beijing Univ.of Aeronautics and Astronautics, Beijing 100083, China
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| Abstract: |
| To study the gas temperature rising in the resonance tube,the model of the sonic nozzle-cylindrical resonance tube system was established.The shock wave theory was used to analyze the impact of the periodic shock waves and expansion waves on the interior gases.The analyses show that the shock waves arise the gas temperature and the expansion waves reduce it, and it will arise by their combined effects.While the gas temperature arises, the shock wave heating ability weakens.As a result,the gas temperature rise to a certain value. |
| Key words: Resonant vibration Shock wave Expansion Aerodynamic heating Theory |
