Analysis of wave propagation in saturated porous media. II. Parametric studies Original Research Article

The general theoretical solution for the wavespeeds and damping derived in Part I of this work, are incorporated into the computer code. In this study the code is used in a parametric study of the influence of excitation frequency and variations in material properties on propagation velocity and damping. Compressional wave velocity for waves of the first kind is shown to vary as a function of the frequency–permeability product, with a zone where wavespeed transitions from a lower bound value to a higher bound value with increasing values of the product. Damping is seen to be a maximum where the rate of change in wavespeed is greatest. Waves of the second kind also show a transition in wavespeed from near zero at low values of the frequency–permeability product to an upper bound value at higher values of the product.