Theoretical Model of Acoustic Wave Propagation in Shallow Water

Modified Green’s Functions for Shallow Water Acoustic Wave Propagation

This article presents an assessment of alternative forms of the Green’s function for boundary element simulations of acoustic wave propagation in shallow water. It is assumed that the problem is two-dimensional, the source of acoustic disturbance is time-harmonic, the velocity of sound is constant and the medium in the absence of perturbations is quiescent. Efficient implementations of the boun...

Effect of Mesoscale Variability of Water Masses on Acoustic Wave Propagation in a Shallow Sea

Anthropogenic noise in the sea is now classed as a pollutant alongside chemical pollution and marine litter in accordance with the Marine Strategy Framework Directive. Noise from shipping is a major contributor to the ambient noise levels in the ocean, particularly at low (<300Hz) frequencies. The properties of sound propagation in shallow waters are highly influenced by the marine physical env...

The Two Dimensional Numerical Modeling Of Acoustic Wave Propagation in Shallow Water

The numerical simulation of shallow water acoustic propagation has given rise to a wide variety of modeling techniques with various degrees of accuracy. One technique, involving finite difference methods, is more commonly used in the description of seismic propagation but also occurs in the shallow water propagation literature. This word reported here involves the application of finite differen...

Numerical Studies of Acoustic Propagation in Shallow Water

We have focused our attention on the development and use of the finite-difference time-domain (FDTD) method. This time-domain technique, which is flexible, robust, and simple to implement, has previously been used by the electromagnetics community to solve a wide range of problems. However, the FDTD method has not been widely used by the acoustics community and its ability to accurately solve m...

Low Frequency Acoustic Intensity Propagation Modeling in Shallow Water Waveguides