Dynamic behavior of nearly saturated porous media

The field and constitutive equations expressing the dynamic behavior of a partially saturated porous medium considered as a solid-fluid-gas system are developed. The corresponding governing equations are then constructed and subsequently linearized to form a system of 11 partial differential equations with 11 unknowns. This system is reduced to 7 equations with 7 unknowns for the special case of the nearly saturated porous medium. The various...