Multi-Electrode Array Bunching Characteristics of Underwater Intense Sound Source

The shock wave generation characteristics of underwater plasma intense sound source were analyzed and, based on the superposition of shock waves, a multi-electrode array bunching scheme was proposed using the interval consistency between the shock wave formation and the triggered switch flow.The multi-electrode array bunching sound field model of underwater plasma intense sound source was established, and the array bunching characteristics of different discharging sequences were obtained by numerical simulation. The results show that the multi-electrode array bunching scheme is feasible for coherent superposition. By controlling the discharging sequence of the multi-electrode array, the directivity of the array bunching area can be flexibly changed and the sound pressure level of the specified area can be effectively enhanced. The results provide a theoretical guide for further understanding of the superposition rule of underwater intense sound shock wave and optimum design of the multi-electrode array.