Simulation of sound emitted from collision of droplet with shallow water by the lattice boltzmann method

Abstract

The sound emitted from splash of water droplet colliding with shallow water is simulated by the finite difference lattice Boltzmann method. Two-particle immiscible fluid model is used, and the under water sound is considered by introducing the elasticity for the liquid phase. After the collision, sounds propagating into the gas and liquid phases are successively detected. The directivity of the sound is shown to depend on the depth of the water. © 2008 Springer-Verlag Berlin Heidelberg.