In this article, the meshless local radial point interpolation (MLRPI) methods are applied to simulate two dimensional wave equation subject to given appropriate initial and Neumann’s boundary conditions. In MLRPI method, all integrations are carried out locally over small quadrature domains of regular shapes such as square or circle. The radial point interpolation method is proposed to construct shape functions for MLRPI. A weak formulation with a Heaviside step function transforms the set of governing equations into local integral equations on local sub domains where Neumann’s boundary condition is imposed naturally. A two-step time discretization method with the help of Crank-Nicolson technique is employed to approximate the time derivatives. Convergence studies in the numerical example show that MLRPI method possesses excellent rates of convergence.
Shivanian, E., Hosseini, M., & Rahimi, A. (2020). Meshless local radial point interpolation (MLRPI) to two dimensional wave equation with Neumann’s boundary conditions. Computational Methods for Differential Equations, 8(1), 155-172. doi: 10.22034/cmde.2019.9464
MLA
Elyas Shivanian; Mostafa Hosseini; Asghar Rahimi. "Meshless local radial point interpolation (MLRPI) to two dimensional wave equation with Neumann’s boundary conditions". Computational Methods for Differential Equations, 8, 1, 2020, 155-172. doi: 10.22034/cmde.2019.9464
HARVARD
Shivanian, E., Hosseini, M., Rahimi, A. (2020). 'Meshless local radial point interpolation (MLRPI) to two dimensional wave equation with Neumann’s boundary conditions', Computational Methods for Differential Equations, 8(1), pp. 155-172. doi: 10.22034/cmde.2019.9464
VANCOUVER
Shivanian, E., Hosseini, M., Rahimi, A. Meshless local radial point interpolation (MLRPI) to two dimensional wave equation with Neumann’s boundary conditions. Computational Methods for Differential Equations, 2020; 8(1): 155-172. doi: 10.22034/cmde.2019.9464
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