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      Analysis of a Fourier-Galerkin numerical scheme for a 1D Benney-Luke-Paumond equation Translated title: Análisis de un esquema numérico Fourier-Galerkin para una ecuación unidimensional Benney-Luke-Paumond

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          Abstract

          Abstract We study convergence of the semidiscrete and fully discrete formulations of a Fourier-Galerkin numerical scheme to approximate solutions of a nonlinear Benney-Luke-Paumond equation that models long water waves with small amplitude propagating over a shallow channel with flat bottom. The accuracy of the numerical solver is checked using some exact solitary wave solutions. In order to apply the Fourier-spectral scheme in a non periodic setting, we approximate the initial value problem with x ∈ ℝ by the corresponding periodic Cauchy problem for x ∈ [0,L], with a large spatial period L.

          Translated abstract

          Resumen Estudiamos la convergencia de las formulaciones semidiscreta y completamente discreta de un método espectral Fourier-Galerkin para aproximar las soluciones de una ecuación no lineal Benney-Luke-Paumond que modela ondas largas con pequeña amplitud que se propagan sobre un canal raso con fondo plano. La precisión del método numérico se verifica usando algunas soluciones de onda solitaria exactas. A fin de aplicar el esquema Fourier-espectral en un contexto no periódio, aproximamos el problema de valor inicial con x ∈ ℝ por el correspondiente problema de Cauchy periódico para x ∈ [0,L], con un periodo espacial L grande.

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          Most cited references15

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          Two-dimensional solitary waves for a Benney–Luke equation

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            Fourier Methods with Extended Stability Intervals for the Korteweg–de Vries Equation

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              Error analysis for spectral approximation of the Korteweg-de Vries equation

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                Author and article information

                Contributors
                Role: ND
                Journal
                rcm
                Revista Colombiana de Matemáticas
                Rev.colomb.mat.
                Universidad Nacional de Colombia y Sociedad Colombiana de Matemáticas (Bogotá, Distrito Capital, Colombia )
                0034-7426
                December 2015
                : 49
                : 2
                : 213-234
                Affiliations
                [01] Cali orgnameUniversidad del Valle Colombia
                Article
                S0034-74262015000200001
                10.15446/recolma.v49n2.60440
                a0a0556d-3f56-4256-82cd-91f10a78e66b

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : June 2015
                : October 2015
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 16, Pages: 22
                Product

                SciELO Colombia


                water waves,Ondas solitarias,ondas acuáticas,métodos espectrales,Solitary waves,spectral methods

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