Mixed Finite Element Methods for Fractional Navier-Stokes Equations

Mixed Finite Element Methods for Fractional Navier-Stokes Equations

Year:    2021

Author:    Xiaocui Li, Xu You

Journal of Computational Mathematics, Vol. 39 (2021), Iss. 1 : pp. 130–146

Abstract

This paper gives the detailed numerical analysis of mixed finite element method for fractional Navier-Stokes equations. The proposed method is based on the mixed finite element method in space and a finite difference scheme in time. The stability analyses of semi-discretization scheme and fully discrete scheme are discussed in detail. Furthermore, We give the convergence analysis for both semidiscrete and fully discrete schemes and then prove that the numerical solution converges the exact one with order $O(h^2+k)$, where $h$ and $k$ respectively denote the space step size and the time step size. Finally, numerical examples are presented to demonstrate the effectiveness of our numerical methods.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jcm.1911-m2018-0153

Journal of Computational Mathematics, Vol. 39 (2021), Iss. 1 : pp. 130–146

Published online:    2021-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    17

Keywords:    Time-fractional Navier-Stokes equations Finite element method Error estimates Strong convergence.

Author Details

Xiaocui Li

Xu You

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