Open Access

Surface wave propagation in a fluid saturated incompressible porous half-space lying under two layers of different liquids

Earth, Planets and Space200759:BF03352031

https://doi.org/10.1186/BF03352031

Received: 28 September 2006

Accepted: 28 June 2007

Published: 31 August 2007

Abstract

A study of surface wave propagation in a fluid saturated incompressible porous half-space lying under a double-layer consisting of non-homogeneous and homogeneous liquids is presented. The frequency equation connecting the phase velocity with wave number is derived. Special cases as: (i) Rayleigh type surface waves in an incompressible poro-elastic half-space lying under a uniform layer of a homogeneous liquid, (ii) Rayleigh type surface waves in an incompressible poro-elastic half-space lying under a uniform layer of a non-homogeneous liquid and (iii) Rayleigh type surface waves propagating along the free surface of a fluid saturated incompressible porous elastic half-space, are investigated. Numerical results with graphical presentations of the variations of phase velocity with wave number for different cases are also included.

Key words

Incompressible porous medium volume fractions frequency equation phase velocity wave number