A Godunov-Mixed Finite Element Method on Changing Meshes for the Nonlinear Sobolev Equations

Tongjun Sun

Abstract and Applied Analysis, 2012, vol. 2012, 1-19

Abstract:

A Godunov-mixed finite element method on changing meshes is presented to simulate the nonlinear Sobolev equations. The convection term of the nonlinear Sobolev equations is approximated by a Godunov-type procedure and the diffusion term by an expanded mixed finite element method. The method can simultaneously approximate the scalar unknown and the vector flux effectively, reducing the continuity of the finite element space. Almost optimal error estimates in -norm under very general changes in the mesh can be obtained. Finally, a numerical experiment is given to illustrate the efficiency of the method.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:413718

DOI: 10.1155/2012/413718

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