Abstract
In this study, we have succeeded to generate the shock wave in 3 mm inner diameter tube by using diaphragmless driver section that we developed. The laser differential interferometer is constructed for the measurement of the shock wave propagating in the small diameter tube. The Mach number of the shock wave and the density ratio across the shock wave can be calculated by the interferometric signal obtained from the shock wave measurement. The Mach number distributions along the axial direction of the tube and the relation between the shock wave location and the time are obtained. As a consequence, it is confirmed that the behavior of the shock wave propagating in small diameter tube shows remarkable deviations from the theory and Brouillette's model.
