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A NONCONFORMING PRIMAL MIXED FINITE ELEMENT METHOD FOR THE STOKES EQUATIONS

  • Cho, Sungmin (Department of Mathematics Yonsei University) ;
  • Park, Eun-Jae (Department of Mathematics and Department of Computational Science and Engineering Yonsei University)
  • Received : 2013.09.09
  • Published : 2014.11.30

Abstract

In this article, we propose and analyze a new nonconforming primal mixed finite element method for the stationary Stokes equations. The approximation is based on the pseudostress-velocity formulation. The incompressibility condition is used to eliminate the pressure variable in terms of trace-free pseudostress. The pressure is then computed from a simple post-processing technique. Unique solvability and optimal convergence are proved. Numerical examples are given to illustrate the performance of the method.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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