Title:         A multilevel Newton-Krylov interface solver for 
               multiphysics couplings of flow in porous media

Author:        I. Yotov

Source:        Numer. Linear Algebra Appl. 8 (2001) 551--570

Status:        Published

Abstract: A multiblock approach to modeling flow in porous media
allows for coupling different physical and numerical models in a
single simulation through the use of mortar finite elements. The
resulting nonlinear algebraic system is reduced to a nonlinear
interface problem which is solved by a Full Approximation Scheme (FAS)
multigrid with a Newton-GMRES smoother.