Strong interference of sound pressure generated by vortex soliton with axial flow

Sound pressure generated by a thin vortex filament with axial flow is investigated on the base of soliton theory. The pressure is estimated by using the experimental results of Maxworthy et al. [J. Fluid Mech. 151, 141] where one-soliton propagation and head-on collision of two solitons are observed. Collision of two solitons gives rise to very enhanced interference of the sound pressure.