Chew, Jackel Vui Lung and Jumat Sulaiman and Andang Sunarto and Fatihah Anas Muhiddin (2022) Newton explicit decoupled group solution for twodimensional nonlinear porous medium equation problems. In: Proceedings of the 8th International Conference on Computational Science and Technology: ICCST 2021, 28–29 August 2021, Labuan, Malaysia.
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Newton explicit decoupled group solution for twodimensional nonlinear porous medium equation problems _ABSTRACT.pdf Download (60kB) 
Abstract
This paper presents a Newton Explicit Decoupled Group method based on a halfsweep implicit finite difference scheme as an efficient solution method for twodimensional nonlinear porous medium equation problems. The mathematical problem is subjected to the initial and Dirichlet’s boundary conditions. This paper used the halfsweep technique to derive the implicit finite difference scheme to discretize the considered differential equation. The stability of the twodimensional halfsweep finite difference approximation is analyzed. Newton method is applied to form the system of the linearized equation before the solution is approximated using the proposed Explicit Decoupled Group method. The proposed method is tested on several problems. The obtained numerical result is compared with the numerical result from the existing method from the same family of NewtonExplicit Group and the classical NewtonGauss–Seidel method. The efficiency of the proposed method is determined based on the number of iterations and computation time. Computational complexity analysis is also reported.
Item Type:  Conference or Workshop Item (Paper) 

Keyword:  Porous medium equation , Halfsweep , Finite difference method , Newton method , Explicit decoupled group , Computational complexity 
Subjects:  Q Science > QC Physics > QC1999 Physics 
Department:  FACULTY > Faculty of Computing and Informatics 
Depositing User:  SAFRUDIN BIN DARUN  
Date Deposited:  04 Aug 2022 07:16 
Last Modified:  04 Aug 2022 07:16 
URI:  https://eprints.ums.edu.my/id/eprint/33408 
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