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Suppression of the Detonation Wave with the Aid of a Multi-Component Particle Cloud
Journal of Applied Mechanics and Technical Physics ( IF 0.6 ) Pub Date : 2020-01-01 , DOI: 10.1134/s002189442001006x
A. M. Tahsini

The aim of this study is to investigate the effect of diversity of particles in the downstream cloud on detonation wave suppression. The multi-component two-phase model for a reacting compressible flow field including clouds of chemically inert solid particles is utilized here. The detonation wave is simulated in a stoichiometric hydrogen and oxygen mixture using a detailed full chemistry model. The finite volume scheme is used in the developed numerical program, where the advection upstream splitting method is used in addition to the Saurel method for the multi-particle cloud in order to compute the particle-phase and gas-phase fluxes. The impact of the detonation wave on the rigid wall is investigated, and the magnitude of the resulting pressure rise is accurately predicted in the case of a head-on collision of two similar waves instead of direct simulation of the wall reflection. The results demonstrate that the impact pressure rise is rather strong and destructive, and using a multi-component particle cloud may have better attenuating features for both short and long action times and require a shorter required propagation length for detonation wave suppression than using a single-component particle cloud.

中文翻译:

借助多组分粒子云抑制爆震波

本研究的目的是研究下游云中粒子的多样性对爆震波抑制的影响。此处使用了包含化学惰性固体颗粒云的反应可压缩流场的多组分两相模型。使用详细的完整化学模型在化学计量的氢氧混合物中模拟爆震波。在开发的数值程序中使用有限体积方案,其中除了用于多粒子云的 Saurel 方法之外,还使用对流上游分裂方法来计算粒子相和气相通量。研究了爆轰波对刚性壁的影响,并且在两个相似波正面碰撞的情况下,而不是直接模拟壁面反射,可以准确预测由此产生的压力升高的幅度。结果表明,冲击压力上升相当强且具有破坏性,并且使用多分量粒子云对于短作用时间和长作用时间都可能具有更好的衰减特性,并且与使用单粒子云相比,需要更短的所需传播长度来抑制爆震波。成分粒子云。
更新日期:2020-01-01
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