DISSIPATION AND DISPERSION IN FRACTIONAL NONLINEAR WAVE DYNAMICS: ANALYTICAL AND NUMERICAL EXPLORATIONS

Mostafa M. A. Khater and Suleman H. Alfalqi
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Mostafa M. A. Khater: School of Medical Informatics and Engineering, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu 221004, P. R. China2Department of Basic Science, Obour High Institute for Engineering and Technology, Cairo 11828, Egypt
Suleman H. Alfalqi: Department of Mathematics, Applied College in Mahayil, King Khalid University, Abha 61421, Saudi Arabia

FRACTALS (fractals), 2024, vol. 32, issue 07n08, 1-19

Abstract: The fractional nonlinear generalized (3+1)-dimensional Chaffee–Infante (FGCI) equation is a nonlinear evolution equation that governs the propagation of waves in dispersive media, exhibiting both dissipative and dispersive effects. It finds applications in various fields such as fluid mechanics, plasma physics, and nonlinear optics, where the interplay between nonlinearity, dispersion, and dissipation plays a crucial role in determining the dynamics of the system. This study aims to obtain analytical and numerical solutions for the FGCI equation, which is a generalization of the Chaffee–Infante equation. The analytical approach employed is the Khater II (Khat II) method, an efficient technique for constructing approximate analytical solutions to nonlinear fractional differential equations. Additionally, He’s variational iteration (HVI) method is implemented as a numerical scheme to validate the accuracy of the analytical solutions obtained from the Khat II method. The results obtained through these methods demonstrate the effectiveness of the proposed techniques in solving the FGCI equation and provide valuable insights into the dynamics of wave propagation phenomena governed by the equation. The significance of this study lies in its contribution to the understanding of nonlinear wave propagation phenomena and the development of analytical and numerical techniques for solving fractional differential equations. The novelty of the research lies in the application of the Khat II method to the FGCI equation, which has not been previously explored, and the validation of the analytical solutions through the HVI method. The study is conducted in the field of applied mathematics, with a focus on nonlinear fractional differential equations and their applications in various physical systems.

Keywords: Fractional Nonlinear Generalized (3+1)-Dimensional Chaffee–Infante Equation; Khater II Method; He’s Variational Iteration Method; Analytical Solutions; Numerical Validation (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218348X24400383

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