Guidelines for RBF-FD discretization: Numerical experiments on the interplay of a multitude of parameter choices

S Le Borne, W Leinen - Journal of scientific computing, 2023 - Springer
There exist several discretization techniques for the numerical solution of partial differential
equations. In addition to classical finite difference, finite element and finite volume …

RBF-FD formulas and convergence properties

V Bayona, M Moscoso, M Carretero… - Journal of Computational …, 2010 - Elsevier
The local RBF is becoming increasingly popular as an alternative to the global version that
suffers from ill-conditioning. In this paper, we study analytically the convergence behavior of …

Optimal constant shape parameter for multiquadric based RBF-FD method

V Bayona, M Moscoso, M Kindelan - Journal of Computational Physics, 2011 - Elsevier
Radial basis functions (RBFs) have become a popular method for interpolation and solution
of partial differential equations (PDEs). Many types of RBFs used in these problems contain …

Improved treatment of wall boundary conditions for a particle method with consistent spatial discretization

T Matsunaga, A Södersten, K Shibata… - Computer Methods in …, 2020 - Elsevier
In recent years, consistent spatial discretization schemes for meshfree particle methods to
numerically simulate incompressible flow have been studied by many researchers. This …

An asymptotically compatible treatment of traction loading in linearly elastic peridynamic fracture

Y Yu, H You, N Trask - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
Meshfree discretizations of state-based peridynamic models are attractive due to their ability
to naturally describe fracture of general materials. However, two factors conspire to prevent …

[HTML][HTML] A meshfree generalized finite difference method for surface PDEs

P Suchde, J Kuhnert - Computers & Mathematics with Applications, 2019 - Elsevier
In this paper, we propose a novel meshfree Generalized Finite Difference Method (GFDM)
approach to discretize PDEs defined on manifolds. Derivative approximations for the same …

Adaptive meshless centres and RBF stencils for Poisson equation

O Davydov, DT Oanh - Journal of Computational Physics, 2011 - Elsevier
We consider adaptive meshless discretisation of the Dirichlet problem for Poisson equation
based on numerical differentiation stencils obtained with the help of radial basis functions …

Lagrangian differencing dynamics for incompressible flows

J Bašić, N Degiuli, B Blagojević, D Ban - Journal of Computational Physics, 2022 - Elsevier
A Lagrangian meshless method is introduced for numerical simulation of flows of
incompressible fluids with free surface. Poisson Pressure Equation (PPE) formulation of …

Optimal variable shape parameter for multiquadric based RBF-FD method

V Bayona, M Moscoso, M Kindelan - Journal of Computational Physics, 2012 - Elsevier
In this follow up paper to our previous study in Bayona et al.(2011)[2], we present a new
technique to compute the solution of PDEs with the multiquadric based RBF finite difference …

A unified algorithm for the selection of collocation stencils for convex, concave, and singular problems

T Jacquemin, SPA Bordas - International Journal for Numerical …, 2021 - Wiley Online Library
We introduce in this article a unified algorithm which allows the selection of collocation
stencils, based on the visibility criterion, for convex, concave, and singular problems solved …