Solution of time-fractional Cahn–Hilliard equation with reaction term using homotopy analysis method

Tripathi, Neeraj Kumar and Das, Subir and Ong, Seng Huat and Jafari, Hossein and Al Qurashi, Maysaa’ Mohamed (2017) Solution of time-fractional Cahn–Hilliard equation with reaction term using homotopy analysis method. Advances in Mechanical Engineering, 9 (12). p. 168781401774077. ISSN 1687-8132, DOI

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In this article, the approximate analytical solution of the time-fractional Cahn–Hilliard equation with quadratic form of the source/sink term is obtained using the powerful homotopy analysis method, which permits us to select a convergence control parameter that minimizes residual errors. The concerned method is more general in theory and widely valid in practice to solve nonlinear problems even for fractional order systems as it provides a convenient way to guarantee the convergence of the approximate series. The results have been given to show the effect of the reaction term on the solution profile in both fractional and standard order cases for different particular cases. The main feature of this study is the authentication that only a few iterations are required to obtain the accurate approximate solution of the present mathematical model. This is justified through error analysis for both fractional and standard order cases. This striking feature of savings in time is exhibited through graphical presentations of the numerical values when the system passes from standard order to fractional order in the presence or absence of the reaction term.

Item Type: Article
Funders: Science & Engineering Research Board (SERB), Government of India (vide their letter no. SB/S4/ MS:840/13 dated 07.05.2015)
Uncontrolled Keywords: Cahn–Hilliard equation; convergence analysis; fractional order derivative; homotopy analysis method; reaction term
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science > Institute of Mathematical Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Oct 2019 07:09
Last Modified: 26 Oct 2019 07:09

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