采用三阶TVD迎风格式和Strang-splitting算子分裂法,对氢氧混合物爆震燃烧进行了二维数值计算;获得了爆震燃烧流场的清晰、独特和规则的三波结构;分析了三波结构的构成和成因以及爆震燃烧直接起爆后由强爆震燃烧波衰减为稳定自持的爆震燃烧波的过程.
The paper uses the third order upwind scheme with TVD property and the Strang-splitting method to carry out the 2D simulation of H2/O2 detonation and obtains its unique and regular triple wave structure. The formation and its causes of the obtained triple wave structure have been analyzed. The wave attenuation process from strong detonation to self-sustained stable detonation inside a tube has been described.