Abstract

A FETI-DP algorithm is proposed for solving the system of linear equations arising from the mixed finite element approximations of a three dimensional saddle problem. A preconditioned conjugate gradient method is used in the algorithm with either a lumped or a Dirichlet preconditioner, and scalable convergence rates are proved without a divergence free condition for the coarse space. Numerical experiments of solving a three-dimensional incompressible Stokes problem demonstrate the performance of the proposed algorithm.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call