Block-preconditioned Newton – Krylov solvers for fully coupled flow and geomechanics

  title={Block-preconditioned Newton – Krylov solvers for fully coupled flow and geomechanics},
  author={Joshua A. White and Ronaldo I. Borja},
The focus of this work is efficient solution methods for mixed finite element models of variably saturated fluid flow through deformable porous media. In particular, we examine preconditioning techniques to accelerate the convergence of implicit Newton– Krylov solvers. We highlight an approach in which preconditioners are built from block-factorizations of the coupled system. The key result of the work is the identification of effective preconditioners for the various sub-problems that appear… CONTINUE READING
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