Special Session 141: New trends and methods for differential problems

Numerical analysis of a coupled system of parabolic equations with nonlinear and nonlocal drift
Nicklas J\\"{a}verg\\{aa}rd
Karlstad University
Sweden
Co-Author(s):    Nicklas Javergard, Rainey Lyons, Adrian Muntean
Abstract:
We study the formation and evolution of complex morphologies that arise in systems of equations governed by nonlinear and nonlocal interactions. Starting from the continuum formulation, which is derived from a particular hydrodynamic limit of the lattice-based Blume-Capel model with Kawasaki dynamics, we analyze a class of partial differential equations that capture the interplay between diffusion and interaction-driven transport in a ternary mixture. We propose a semi-discrete finite volume scheme to approximate the unique weak solution of the system. We prove that our scheme is well-posed and converge to the wanted solution. Furthermore, we show that the scheme is stable with respect to a parameter in the drift term.