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采用带有化学反应的Euler方程,对突跃型与平滑型2种形态的斜爆震波(ODW)在起爆机制和结构特点等方面的差异进行了研究.结果表明:斜激波(OSW)后是否存在亚声速区是判定斜爆震形态的依据.当波后火焰抬升斜激波面使得亚声速区存在时,横向激波与三波点结构就会出现并形成突跃型斜爆震.当波后所有区域皆为超声速区时,波后火焰燃烧无法影响到上游激波面,则会形成平滑型斜爆震.通过斜激波关系式给出了横向激波形成所需的临界斜激波角度,只有当斜激波角度大于此临界角度时才能形成突跃型斜爆震波,反之则形成平滑型斜爆震波.
Euler equations with chemical reaction were used to study the differences of detonation wave (ODW) between detonation and smoothness in detonation mechanism and structural characteristics of the two kinds of structures. The results show that after oblique shock (OSW) The existence of subsonic velocities is the basis for determining the skew detonation morphology.When the post-wave flame elevates the slash surface so that the subsonic velocities exist, the transverse shock and the three-wave point structure will appear and form a lean diagonal detonation. After all regions are in the supersonic zone, the post-wave flame combustion can not affect the upstream shock wave surface, and then a smooth type diagonal detonation will be formed. The critical oblique shock angle required for the formation of a transverse shock wave is given by the relation of the oblique shock wave , Only when the oblique shock angle is greater than this critical angle to form a sudden oblique knock detonation wave, otherwise form a smooth oblique detonation wave.