Special Session 134: 

A degenerate Cahn-Hilliard-Stokes-Darcy model for two-phase flow in karst geometry

Daozhi Han
Missouri University of Science and Technology
USA
Co-Author(s):    Daozhi Han
Abstract:
In this talk we derive a degenerate Cahn-Hilliard-Stokes-Darcy model for coupled two-phase flows in conduit and in porous medium. In addition to an energy law, the model satisfies an entropy estimate which dictates the phase filed variable in its physical bound. We then present a bound-preserving fractional step method based on variational inequality for solving the model.