Distortion of Compression Wave Generated by Reflection of Propagating Expansion Wave at Open-End of Tube

Abstract

Numerical and experimental studies of a compression wave generated by the reflection of an expansion wave at the open-end of a tube were carried out in this paper. The development of waveform of the compression wave propagated in a straight tube was numerically investigated. The equations of axisymmetric unsteady and compressible flow are solved by the TVD method. It is obtained that the transition to the shock wave of the compression wave occurs at the distance of 20 times of the wave-length of an incident expansion wave from the open-end of the tube.