title: Reply to "Comment on 'Dynamics of wetting fronts in porous media' "
abstract: In our work [Phys. Rev. E 58, R5245 (1998)] we introduced a dynamic phenomenological approach to model propagation of localized wetting fronts in porous media. Gray and Miller in their Comment [Phys. Rev. E 61, 2150 (2000)] criticize our approach on several issues. The main criticism addresses the problem of mass conservation in our model. In this Reply we argue that their criticism is incorrect.
authors.affiliation: Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.initials: I
authors.lastname: Mitkov
authors.initials: DM
authors.lastname: Tartakovsky
authors.lastname: Larrabee Winter C