At first, the plane detonation wave propagation, collision, oblique reflection, and Mach reflection in the borehole were analyzed to describe the entire process of detonation wave collision.
The reflected shock can catch the incident shock, and a single merged shock is formed in the Mach reflection zone of Figure 1.
The pressure increasing ratio sharply jumps to 3.08 with the occurrence of the Mach reflection, where [Q.sub.3] = Q is assumed.
The formula for calculating the detonation pressure of the frontal collision, oblique reflection, and Mach reflection was also derived.
If the planar wavefront forms a certain intersection angle with the rigid wall, the shock wave reflection will show the regular reflection or Mach reflection
, which has a certain interference on the research of the normal reflection of shock wave; as a result, the experimental data acquisition will also be interfered.