Finite element approximation of a Cahn–Hilliard–Navier–Stokes system

  • David Kay

    University of Sussex, Brighton, United Kingdom
  • Vanessa Styles

    University of Sussex, Brighton, UK
  • Richard Welford

    University of Sussex, Brighton, United Kingdom

Abstract

We consider a semi-discrete and a practical fully-discrete finite element approximation of a Cahn - Hilliard - Navier - Stokes system. This system arises in the modelling of multiphase fluid systems. We show order error estimate between the solution of the system and the solution of the semi-discrete approximation. We also show the convergence of the fully discrete approximation. Finally, we present an efficient implementation of the fully discrete scheme together with some numerical simulations.

Cite this article

David Kay, Vanessa Styles, Richard Welford, Finite element approximation of a Cahn–Hilliard–Navier–Stokes system. Interfaces Free Bound. 10 (2008), no. 1, pp. 15–43

DOI 10.4171/IFB/178