Application of the heat-balance and refined integral methods to the Korteweg-de Vries equation | Zendy

T.G. Myers | Zendy; Sarah Mitchell | Zendy

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Application of the heat-balance and refined integral methods to the Korteweg-de Vries equation

Author(s) -

T.G. Myers,

Sarah Mitchell

Publication year - 2009

Publication title -

thermal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.339

H-Index - 43

eISSN - 2334-7163

pISSN - 0354-9836

DOI - 10.2298/tsci0902113m

Subject(s) - mathematics , heat equation , set (abstract data type) , quartic function , matching (statistics) , integral equation , mathematical analysis , traveling wave , korteweg–de vries equation , physics , computer science , nonlinear system , statistics , quantum mechanics , pure mathematics , programming language

In this paper we consider approximate travelling wave solutions to the Korteweg-de Vries equation. The heat-balance integral method is first applied to the problem, using two different quartic approximating functions, and then the refined integral method is investigated. We examine two types of solution, chosen by matching the wave speed to that of the exact solution and by imposing the same area. The first set of solutions is generally better with an error that is fixed in time. The second set of solutions has an error that grows with time. This is shown to be due to slight discrepancies in the wave speed

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