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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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On the error estimates of the vector penalty-projection methods: Second-order scheme
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by Philippe Angot and Rima Cheaytou PDF
Math. Comp. 87 (2018), 2159-2187 Request permission

Abstract:

In this paper, we study the vector penalty-projection method for incompressible unsteady Stokes equations with Dirichlet boundary conditions. The time derivative is approximated by the backward difference formula of second-order scheme (BDF2), namely Gear’s scheme, whereas the approximation in space is performed by the finite volume scheme on a Marker And Cell (MAC) grid. After proving the stability of the method, we show that it yields second-error estimates in the time step for both velocity and pressure in the norm of $l^{\infty }(\mathbf {L}^2(\Omega ))$ and $l^2(L^2(\Omega ))$, respectively. Also, we show that the splitting error for both velocity and pressure is of order $\mathcal {O}(\sqrt {\varepsilon \delta t})$ where $\varepsilon$ is a penalty parameter chosen as small as desired and $\delta t$ is the time step. Numerical results in agreement with the theoretical study are also provided.
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Additional Information
  • Philippe Angot
  • Affiliation: Aix-Marseille Université, Institut de Mathématiques de Marseille (I2M) - CNRS UMR7373, Centrale Marseille, 13453 Marseille cedex 13 - France
  • MR Author ID: 328099
  • Email: philippe.angot@univ-amu.fr
  • Rima Cheaytou
  • Affiliation: Aix-Marseille Université, Institut de Mathématiques de Marseille (I2M) - CNRS UMR7373, Centrale Marseille, 13453 Marseille cedex 13 - France
  • Email: rima.cheaytou@gmail.com
  • Received by editor(s): November 18, 2016
  • Received by editor(s) in revised form: April 12, 2017
  • Published electronically: December 27, 2017
  • © Copyright 2017 American Mathematical Society
  • Journal: Math. Comp. 87 (2018), 2159-2187
  • MSC (2010): Primary 76D07, 35Q30, 65M15, 65M12
  • DOI: https://doi.org/10.1090/mcom/3309
  • MathSciNet review: 3802431