Acta mathematica scientia,Series A ›› 2016, Vol. 36 ›› Issue (3): 543-557.

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Numerical Investigations on Several Stabilized Finite Element Methods for the Navier-Stokes Problem

Wen Juan1, He Yinnian2, Huang Pengzhan3, Li Min4   

  1. 1 School of Sciences, Xi'an University of Technology, Xi'an 710048;
    2 Center for Computational Geosciences, School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049;
    3 College of Mathematics and System Sciences, Xinjiang University, Urumqi 830046;
    4 College of optoelectronic engineering, Yunnan Open University, Kunming 650223
  • Received:2015-09-02 Revised:2016-02-03 Online:2016-06-26 Published:2016-06-26
  • Supported by:

    Supported by the NSFC (11271298, 11571275) and a research grant for doctorate from Xi'an University of Technology (109-256211419)

Abstract:

In this paper, several stabilized finite element methods based on the lowest equal-order finite element pairs (P1/P1 or Q1/Q1) for the steady Navier-Stokes problem are investigated. The methods include penalty, regular, local Gauss integration and multiscale enrichment method. Comparisons among them show that the multiscale enrichment method we constructed is a favorite method in terms of stability and accuracy at higher Reynolds numbers for the Navier-Stokes problem.

Key words: Stabilized methods, P1/P1 elements, Inf-Sup condition, Mixed finite element methods, Navier-Stokes problem

CLC Number: 

  • O241.182
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