Shooting homotopy analysis method: A fast method to find multiple solutions of nonlinear boundary value problems arising in fluid mechanics. Issue 2 (18th April 2017)

• Record Type: Journal Article
• Authors: Ahmad Soltani, L.; Shivanian, E.; Ezzati, Reza
• Is Part Of: Engineering computations. Volume 34:Issue 2(2017)
• Page Start: 471
• Page End: 498
• Publication Date: 2017-04-18
• Subjects: Shooting method -- Multiple solutions -- Homotopy analysis method (HAM) -- Predictor homotopy analysis method (PHAM) -- Shooting homotopy analysis method (SHHAM); Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-10-2015-0329
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: The purpose of this paper is to present a new method based on the homotopy analysis method (HAM) with the aim of fast searching and calculating multiple solutions of nonlinear boundary value problems (NBVPs). Design/methodology/approach: A major problem with the previously modified HAM, namely, predictor homotopy analysis method, which is used to predict multiplicity of solutions of NBVPs, is a time-consuming computation of high-order HAM-approximate solutions due to a symbolic variable namely "prescribed parameter". The proposed new technique which is based on traditional shooting method, and the HAM cuts the dependency on the prescribed parameter. Findings: To demonstrate the computational efficiency, the mentioned method is implemented on three important nonlinear exactly solvable differential equations, namely, the nonlinear MHD Jeffery–Hamel flow problem, the nonlinear boundary value problem arising in heat transfer and the strongly nonlinear Bratu problem. Originality/value: The more high-order approximate solutions are computable, multiple solutions are easily searched and discovered and the more accurate solutions can be obtained depending on how nonhomogeneous boundary conditions are transcribed to the homogeneous boundary conditions.