The collapse of a gas bubble near a solid wall by a shock wave and the induced impulsive pressure

An experimental study concerning the shock wave-bubble interaction was conducted in order to obtain a unified consideration of the mechanism of the impulsive pressure generation induced by the cavitation bubble collapse. It was found that the relation between the maximum impulsive pressure, and the relative distance, is closely similar to the known result obtained from a single spark-generated bubble, and that a gas bubble within a certain region behaves as a source capable of generating more intensive impulsive pressure than the impact pressure induced by a shock wave impinging directly on a solid wall without the presence of a gas bubble.