Nonlinear preconditioning for two-phase flows

L. Luo, X. Cai, D. Keyes

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


Using a classical Newton-Krylov method to solve the resulting nonlinear system of two-phase flows in porous media often suffers from slow convergence or failure in line search. We propose two nonlinear elimination preconditioning strategies to handle this issue by performing subspace correction to remove the local strong nonlinearities. Numerical experiments show that the proposed methods are more robust and faster than the existing method with respect to some physical and numerical parameters, and scalable to thousands of processes.

Original languageEnglish (US)
StatePublished - 2021
Event5th EAGE Workshop on High Performance Computing for Upstream - Virtual, Online
Duration: Sep 6 2021Sep 8 2021


Conference5th EAGE Workshop on High Performance Computing for Upstream
CityVirtual, Online

ASJC Scopus subject areas

  • Hardware and Architecture
  • Software
  • Theoretical Computer Science


Dive into the research topics of 'Nonlinear preconditioning for two-phase flows'. Together they form a unique fingerprint.

Cite this