1. An implicit meshless scheme for the solution of transient non-linear Poisson-type equations.
- Author
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Bourantas, G.C. and Burganos, V.N.
- Subjects
- *
MESHFREE methods , *POISSON processes , *NONLINEAR wave equations , *SIMULATION methods & models , *PARTIAL differential equations , *LEAST squares , *APPROXIMATION theory - Abstract
Abstract: A meshfree point collocation method is used for the numerical simulation of both transient and steady state non-linear Poisson-type partial differential equations. Particular emphasis is placed on the application of the linearization method with special attention to the lagging of coefficients method and the Newton linearization method. The localized form of the Moving Least Squares (MLS) approximation is employed for the construction of the shape functions, in conjunction with the general framework of the point collocation method. Computations are performed for regular nodal distributions, stressing the positivity conditions that make the resulting system stable and convergent. The accuracy and the stability of the proposed scheme are demonstrated through representative and well-established benchmark problems. [Copyright &y& Elsevier]
- Published
- 2013
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