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On the numerical solution of one-dimensional PDEs using adaptive methods based on equidistribution

Beckett, G. and Ramage, A. and Sloan, D.M. and Mackenzie, J.A. (2001) On the numerical solution of one-dimensional PDEs using adaptive methods based on equidistribution. Journal of Computational Physics, 167 (2). pp. 372-392. ISSN 0021-9991

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Abstract

Numerical experiments are described that illustrate some important features of the performance of moving mesh methods for solving one-dimensional partial differential equations (PDEs). The particular method considered here is an adaptive finite difference method based on the equidistribution of a monitor function and it is one of the moving mesh methods proposed by W. Huang, Y. Ren, and R. D. Russell (1994, SIAM J. Numer. Anal.31 709). We show how the accuracy of the computations is strongly dependent on the choice of monitor function, and we present a monitor function that yields an optimal rate of convergence. Motivated by efficiency considerations for problems in two or more space dimensions, we demonstrate a robust and efficient algorithm in which the mesh equations are uncoupled from the physical PDE. The accuracy and efficiency of the various formulations of the algorithm are considered and a novel automatic time-step control mechanism is integrated into the scheme.

Item type: Article
ID code: 2005
Keywords: computational physics, differential equations, Mathematics, Physics and Astronomy (miscellaneous), Computer Science Applications
Subjects: Science > Mathematics
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 16 Mar 2007
    Last modified: 04 Sep 2014 10:15
    URI: http://strathprints.strath.ac.uk/id/eprint/2005

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