Abstract
A theoretical treatment of the stability of isoconcentration surfaces in a porous sample saturated with a single-phase liquid of variable density and viscosity is presented. In a rectangular system with horizontal displacement front the early growth or decay of Fourier perturbation components is exponential with time. Dependence of growth exponent on wavenumber is presented, including effect of dispersion. Regions of stability with respect to nondimensionalized flow rate, viscosity gradient, and density gradient are shown.

This publication has 16 references indexed in Scilit: