Abstract
The present work describes the application of the method of fundamental solutions (MFS) along with the analog equation method (AEM) and radial basis function (RBF) approximation for solving the 2D isotropic and anisotropic Helmholtz problems with different wave numbers. The AEM is used to convert the original governing equation into the classical Poisson’s equation, and the MFS and RBF approximations are used to derive the homogeneous and particular solutions, respectively. Finally, the satisfaction of the solution consisting of the homogeneous and particular parts to the related governing equation and boundary conditions can produce a system of linear equations, which can be solved with the singular value decomposition (SVD) technique. In the computation, such crucial factors related to the MFS-RBF as the location of the virtual boundary, the differential and integrating strategies, and the variation of shape parameters in multi-quadric (MQ) are fully analyzed to provide useful reference.
Similar content being viewed by others
References
Kupradze V.D. and Aleksidze M.A., The method of functional equations for the approximate solution of certain boundary value problems. USSR Comput. Math. Math. Phys, 1964, 4: 82–126.
Golberg M.A. and Chen C.S., The method of fundamental solutions for potential, Helmholtz and diffusion problems//Boundary Integral Methods-Numerical and Mathematical Aspects, ed. Golberg M.A., Boston/Southampton: Computational Mechanics Publications, 1999: 105–176.
Fairweather G. and Karageorghis A., The method of fundamental solutions for elliptic boundary value problems. Adv. Comput. Math., 1998, 9: 69–95.
Poullikkas A., Karageorghis A. and Georgiou G., The method of fundamental solutions for three-dimensional elastostatics problems. Computers and Structures, 2002, 80: 365–370.
Karageorghis A., The Method of fundamental solutions for the calculation of the eigenvalues of the Helmholtz equation. Applied Mathematics Letters, 2001, 14: 837–842.
Li Xin, On convergence of the method of fundamental solutions for solving the Dirichlet problem of Poisson’s equation. Advances in Computational Mathematics, 2005, 23: 265–277.
Peter Mitic, Youssef F. Rashed, Convergence and stability of the method of meshless fundamental solutions using an array of randomly distributed sources. Eng. Anal. Bound. Elem., 2004, 28: 143–153.
Golberg M.A., Chen C.S. and Bowman H., Some recent results and proposals for the use of radial basis functions in the BEM. Eng. Anal. Bound. Elem., 1999, 23: 285–296.
Golberg M.A., Chen C.S. and Karur S.R., Improved multiquadric approximation for partial differential equations. Eng. Anal. Bound. Elem., 1996, 18: 9–17.
Li J.C., Mathematical justification for RBF-MFS. Eng. Anal. Bound. Elem., 2001, 25: 897–901.
Katsikadelis J. T., The analog equation method—a powerful BEM—based solution technique for solving linear and nonlinear engineering problems//Brebbia CA, ed., Boundary Element Method XVI, Southampton: CLM Publications, 1994: 167–182.
Kansa E.J., Multiquadrics: A scattered data approximation scheme with applications to computational fluid dynamics. Comput. Math. Appl., 1990, 19: 147–161.
Patridge P.W., Brebbia C.A. and Wrobel L.W., The Dual Reciprocity Boundary Element Method. Southampton: Computational Mechanics Publication, 1992: 69–75.
Zou J, Li Z L et al., Boundary element method for model analysis of 2-D composite structure. Acta Mechanica Solida Sinica, 1998, 11: 63–71.
Chen W., Tanaka M., A meshless, integration-free and boundary-only RBF technique. Computers & Mathematics with Applications, 2002, 43: 379–391.
Sun H C, Zhang L Z, et al., Nonsingularity Boundary Element Methods. Dalian: Dalian University of Technology Press, 1999: 185–189.
William H. Press, Saul A. Teukolsky, et al. Numerical recipes in C (2nd ed.). Cambridge University Press, 2001: 59–70.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wang, H., Qin, Q. Some problems with the method of fundamental solution using radial basis functions. Acta Mech. Solida Sin. 20, 21–29 (2007). https://doi.org/10.1007/s10338-007-0703-3
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10338-007-0703-3