A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation

We describe a quasi-variable meshes implicit compact finite-difference discretization having an accuracy of order four in the spatial direction and second-order in the temporal direction for obtaining numerical solution values of generalized Burger’s-Huxley and Burger’s-Fisher equations. The new dif...

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Main Authors: Navnit Jha, Madhav Wagley
Format: Article
Language:English
Published: Western Libraries 2020-11-01
Series:Mathematics in Applied Sciences and Engineering
Subjects:
Online Access:https://ojs.lib.uwo.ca/index.php/mase/article/view/10837
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author Navnit Jha
Madhav Wagley
author_facet Navnit Jha
Madhav Wagley
author_sort Navnit Jha
collection DOAJ
description We describe a quasi-variable meshes implicit compact finite-difference discretization having an accuracy of order four in the spatial direction and second-order in the temporal direction for obtaining numerical solution values of generalized Burger’s-Huxley and Burger’s-Fisher equations. The new difference scheme is derived for a general one-dimension quasi-linear parabolic partial differential equation on a quasi-variable meshes network to the extent that the magnitude of local truncation error of the high-order compact scheme remains unchanged in case of uniform meshes network. Practically, quasi-variable meshes high-order compact schemes yield more precise solution compared with uniform meshes high-order schemes of the same magnitude. A detailed exposition of the new scheme has been introduced and discussed the Fourier analysis based stability theory. The computational results with generalized Burger’s-Huxley equation and Burger’s-Fisher equation are obtained using quasi-variable meshes high-order compact scheme and compared with a numerical solution using uniform meshes high-order schemes to demonstrate capability and accuracy.
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spelling doaj.art-0dee6f7c10a8469082038b33dac205332022-12-21T19:11:59ZengWestern LibrariesMathematics in Applied Sciences and Engineering2563-19262020-11-011428630810.5206/mase/108374977A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equationNavnit Jha0Madhav Wagley1South Asian UniversitySouth Asian UniversityWe describe a quasi-variable meshes implicit compact finite-difference discretization having an accuracy of order four in the spatial direction and second-order in the temporal direction for obtaining numerical solution values of generalized Burger’s-Huxley and Burger’s-Fisher equations. The new difference scheme is derived for a general one-dimension quasi-linear parabolic partial differential equation on a quasi-variable meshes network to the extent that the magnitude of local truncation error of the high-order compact scheme remains unchanged in case of uniform meshes network. Practically, quasi-variable meshes high-order compact schemes yield more precise solution compared with uniform meshes high-order schemes of the same magnitude. A detailed exposition of the new scheme has been introduced and discussed the Fourier analysis based stability theory. The computational results with generalized Burger’s-Huxley equation and Burger’s-Fisher equation are obtained using quasi-variable meshes high-order compact scheme and compared with a numerical solution using uniform meshes high-order schemes to demonstrate capability and accuracy.https://ojs.lib.uwo.ca/index.php/mase/article/view/10837compact scheme, quasi-variable mesh, generalized burgers-huxley equation, generalized burgers-fisher equation, ilkovič’s equation, stability, maximum-absolute-errors
spellingShingle Navnit Jha
Madhav Wagley
A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
Mathematics in Applied Sciences and Engineering
compact scheme, quasi-variable mesh, generalized burgers-huxley equation, generalized burgers-fisher equation, ilkovič’s equation, stability, maximum-absolute-errors
title A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
title_full A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
title_fullStr A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
title_full_unstemmed A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
title_short A family of quasi-variable meshes high-resolution compact operator scheme for Burger's-Huxley, and Burger's-Fisher equation
title_sort family of quasi variable meshes high resolution compact operator scheme for burger s huxley and burger s fisher equation
topic compact scheme, quasi-variable mesh, generalized burgers-huxley equation, generalized burgers-fisher equation, ilkovič’s equation, stability, maximum-absolute-errors
url https://ojs.lib.uwo.ca/index.php/mase/article/view/10837
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