MECHANISM OF DETONATION FORMATION IN THE PROCESS OF VIBRATION COMBUSTION

E. Radkevich, O. Vasil’eva, N. Yakovlev
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引用次数: 1

Abstract

Based on thermodynamic analysis of combustion processes, we build a new model of laminar combustion process of vibration combustion. If the passive component velocity for the two-component mixture is controlled at the inlet (the interior energy is pumped at the inlet of the combustion chamber), high-frequency resonance oscillations of vibration combustion are shown to develop depending on the structure of the standard chemical potential. The resonance is driven by hydrodynamic instability. Numerical experiment models the regimes of resonance with pumped internal energy, the nature of their nucleation depending on the structure of the standard chemical potential is revealed. For low temperatures, the appearance of detonation combustion with substantial pressure increase is established near resonance.
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振动燃烧过程中爆轰的形成机理
在对燃烧过程进行热力学分析的基础上,建立了振动燃烧层流燃烧过程的新模型。如果在入口控制双组分混合物的被动成分速度(在燃烧室入口泵送内部能量),则根据标准化学势的结构显示振动燃烧的高频共振振荡。共振是由水动力不稳定性驱动的。数值实验模拟了带泵浦内能的共振状态,揭示了它们的成核性质取决于标准化学势的结构。在低温条件下,在共振附近建立了压力大幅增加的爆震燃烧现象。
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