Implementation of variational iteration method for various types of linear and nonlinear partial differential equations

Muhammad A. Shihab, Wafaa M. Taha, Raad A. Hameed, Ali Jameel, Ibrahim Mohammed Sulaiman,

International Journal of Electrical and Computer Engineering (IJECE), Vol 13, No 2: April 2023 , pp. 2131-2141

Abstract

There are various linear and nonlinear one-dimensional partial differential equations that are the focus of this research. There are a large number of these equations that cannot be solved analytically or precisely. The evaluation of nonlinear partial differential equations, even if analytical solutions exist, may be problematic. Therefore, it may be necessary to use approximate analytical methodologies to solve these issues. As a result, a more effective and accurate approach must be investigated and analysed. It is shown in this study that the Lagrange multiplier may be used to get an ideal value for parameters in a functional form and then used to construct an iterative series solution. Linear and nonlinear partial differential equations may both be solved using the variational iteration method (VIM) method, thanks to its high computing power and high efficiency. Decoding and analysing possible Korteweg-De-Vries, Benjamin, and Airy equations demonstrates the method’s ability. With just a few iterations, the produced findings are very effective, precise, and convergent to the exact answer. As a result, solving nonlinear equations using VIM is regarded as a viable option.

airy equation; benjamin equation; lagrange multiplier; partial differential equations; potential korteweg-de-vries; variational iteration method;