Some measurements of shock-wave attenuation in channels of various cross-sections

Abstract

Apparatus is described for the measurement of shock attenuation in channels of several configurations. A circular-bore channel, a square-bore channel and converging and diverging channels have been investigated. Measurements of hot-flow duration and wall pressure variations in the shock tube have also been made. It is concluded that convergence of the shock-tube channel provides an attractive method of alleviating attenuation, particularly since the hot-flow durations are not significantly altered by a slow convergence.