American Journal of Applied Mathematics and Statistics
ISSN (Print): 2328-7306 ISSN (Online): 2328-7292 Website: http://www.sciepub.com/journal/ajams Editor-in-chief: Mohamed Seddeek
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American Journal of Applied Mathematics and Statistics. 2016, 4(2), 37-42
DOI: 10.12691/ajams-4-2-2
Open AccessArticle

Solving the Laplace’s Equation by the FDM and BEM Using Mixed Boundary Conditions

Hassan Ghassemi1, , Saeid Panahi1 and Ahmad Reza Kohansal2

1Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran

2Department of Shipbuilding, Faculty of Engineering, Persian Gulf University, Bousher, Iran

Pub. Date: May 07, 2016

Cite this paper:
Hassan Ghassemi, Saeid Panahi and Ahmad Reza Kohansal. Solving the Laplace’s Equation by the FDM and BEM Using Mixed Boundary Conditions. American Journal of Applied Mathematics and Statistics. 2016; 4(2):37-42. doi: 10.12691/ajams-4-2-2

Abstract

This paper presents to solve the Laplace’s equation by two methods i.e. the finite difference method (FDM) and the boundary element method (BEM). The body is ellipse and boundary conditions are mixed. In the BEM, the integration domain needs to be discretized into small elements. The boundary integral equation derived using Green’s theorem by applying Green’s identity for any point in the surface. The methods are applied to examine an example of square domain with mixed boundary condition. Both types of numerical models are computed and compared with analytical solution. The results obtained agree perfectly with those obtained from exact solution.

Keywords:
Mixed boundary condition Boundary element Method Finite Difference Method

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