Axisymmetric wave propagation in multilayered poroelastic grounds due to a transient acoustic point source

• We study wave propagation in a stratified poroelastic seabed submitted to spherical acoustic waves.
• An axisymmetric analytical formulation based on Hankel-Fourier transforms is presented.
• A degenerated half-space test-case is used to validate the model.
• We extend the results to a realistic multilayered seabed, composed of ten layers presenting different properties.

This paper deals with the study of axisymmetric wave propagation in various acoustic/porous stratified media coupling configurations. It presents the theoretical developments of a semi-analytical method, its validation for a limit test-case half-space ground, and an extension to a realistic multilayered seabed, when spherical waves are emitted from a transient point source in water.