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김필원

Kim, Pilwon
Nonlinear and Complex Dynamics
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Invariantization of the Crank-Nicolson method for Burgers' equation

Author(s)
Kim, Pilwon
Issued Date
2008-02
DOI
10.1016/j.physd.2007.09.001
URI
https://scholarworks.unist.ac.kr/handle/201301/8942
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=38549128359
Citation
PHYSICA D-NONLINEAR PHENOMENA, v.237, no.2, pp.243 - 254
Abstract
In this article, a geometric technique to construct numerical schemes for partial differential equations (PDEs) that inherit Lie symmetries is proposed. The moving frame method enables one to adjust the numerical schemes in a geometric manner and systematically construct proper invariant versions of them. To illustrate the method, we study invariantization of the Crank-Nicolson scheme for Burgers' equation. With careful choice of normalization equations, the invariantized schemes are shown to surpass the standard scheme, successfully removing numerical oscillation around sharp transition layers.
Publisher
ELSEVIER SCIENCE BV
ISSN
0167-2789
Keyword (Author)
lie symmetryBurgers&aposequationinvariant schemesmoving frames
Keyword
CONSERVING ALGORITHMSGEOMETRIC INTEGRATORSDIFFERENCE-EQUATIONSHAMILTONIAN-SYSTEMSARBITRARY ORDERSYMMETRYSCHEMESENERGYFOUNDATIONSFORMALISM

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