Spherical Shock Wave Attenuation by Perforated Partitions in a Conical Shock Tube

The overpressure and impulse of the compression phase behind perforated partitions (PPs) located across a conical shock tube (CST) during the propagation of a spherical shock wave in it are experimentally determined. In the experiments, partitions with a different permeability are used. The intensity of the shock wave incident on the partition is varied. The obtained degree of attenuation of the overpressure and impulse of the compression phase of the shock wave increases with a decrease in the permeability of the partition and an increase in the intensity of the wave, remaining practically constant along the length of the CST.

Automated summary

The experimental study investigates the variations in overpressure and impulse of the compression phase behind perforated partitions (PPs) in a conical shock tube (CST) during the propagation of a spherical shock wave. The results show that the attenuation of overpressure and impulse of the compression phase increases with decreasing permeability of the partition and increasing wave intensity, while remaining practically constant along the length of the CST.