An AMG Preconditioner for Solving the Navier-Stokes Equations with a Moving Mesh Finite Element Method

An AMG Preconditioner for Solving the Navier-Stokes Equations with a Moving Mesh Finite Element Method

Year:    2016

East Asian Journal on Applied Mathematics, Vol. 6 (2016), Iss. 4 : pp. 353–366

Abstract

AMG preconditioners are typically designed for partial differential equation solvers and divergence-interpolation in a moving mesh strategy. Here we introduce an AMG preconditioner to solve the unsteady Navier-Stokes equations by a moving mesh finite element method. A $4P1$ − $P1$ element pair is selected based on the data structure of the hierarchy geometry tree and two-layer nested meshes in the velocity and pressure. Numerical experiments show the efficiency of our approach.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/eajam.080416.240516a

East Asian Journal on Applied Mathematics, Vol. 6 (2016), Iss. 4 : pp. 353–366

Published online:    2016-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    14

Keywords:    Navier-Stokes system algebraic multigrid precondition moving mesh.