Shock Wave Attenuation by Means of Built-in Baffles in a Tube

The transient phenomena of incident shock waves during its passage through an orifice, a diverging nozzle, and a conical disk as baffles in a tube are numerically simulated. The influence of geometrical configurations of the baffles on shock attenuation is investigated. The results show that the conical disk was most effective configuration to weaken the strength of transmitted shock waves, since the pressure close to the inlet of the cone does not increase significantly while the transmitted shock wave is passing downstream in the cone.