The reflection phenomena of a plane moving shock wave at a wedge surface have been investigated by many researchers, and four different types of reflection have been observed in previous shock tube experiments. The authors reported in the previous reports on the domains and boundaries of these four types of reflection and the shape of a reflected shock wave. In the present paper, the distribution of the strength of a reflected shock wave along its wave front has been calculated from its shape obtained by optical observations, and the relation between the strength and the shape of a reflected shock wave has been discussed detail. Furthermore, the Flow properties around the triple point in the case of Mach reflection have been calculated using experimental data, and the validity of the three shock theory has been examined.
