Nonlinear study of Rayleigh-Taylor instability in thin films past a porous layer
Using the lubrication and Stokes approximations, we study the linear and nonlinear Rayleigh-Taylor instability in a viscous fluid layer of finite thickness bounded above by a porous layer and below by a rigid surface. The linear problem is studied analytically while the nonlinear one is investigated by using both harmonic evolution of the interface and numerical integration.
scientific article; zbMATH DE number 1203580