Solving PDEs with radial basis functions

B Fornberg, N Flyer - Acta Numerica, 2015 - cambridge.org
Finite differences provided the first numerical approach that permitted large-scale
simulations in many applications areas, such as geophysical fluid dynamics. As accuracy …

[图书][B] A primer on radial basis functions with applications to the geosciences

B Fornberg, N Flyer - 2015 - SIAM
This book is focused on a powerful numerical methodology for solving PDEs to high
accuracy in any number of dimensions: Radial Basis Functions (RBFs). During the past …

[HTML][HTML] Fast generation of 2-D node distributions for mesh-free PDE discretizations

B Fornberg, N Flyer - Computers & Mathematics with Applications, 2015 - Elsevier
Many applications require that nodes be scattered locally quasi-uniformly within 2-D regions
or on curved surfaces in 3-D space, while obeying some prescribed spatially varying density …

[HTML][HTML] A local radial basis function collocation method for band structure computation of phononic crystals with scatterers of arbitrary geometry

H Zheng, Z Yang, C Zhang, M Tyrer - Applied Mathematical Modelling, 2018 - Elsevier
A numerical algorithm based on the local radial basis function collocation method
(LRBFCM) is developed to efficiently compute the derivatives of primary field quantities …

[HTML][HTML] A stabilized radial basis-finite difference (RBF-FD) method with hybrid kernels

PK Mishra, GE Fasshauer, MK Sen, L Ling - Computers & Mathematics with …, 2019 - Elsevier
Recent developments have made it possible to overcome grid-based limitations of finite
difference (FD) methods by adopting the kernel-based meshless framework using radial …

Full-waveform inversion by model extension: Practical applications

G Barnier, E Biondi, RG Clapp, B Biondi - Geophysics, 2023 - library.seg.org
Producing reliable acoustic subsurface velocity models still remains the main bottleneck of
the oil and gas industry's traditional imaging sequence. In complex geologic settings, the …

[HTML][HTML] A local radial basis function collocation method for band structure computation of 3D phononic crystals

H Zheng, C Zhang, Z Yang - Applied Mathematical Modelling, 2020 - Elsevier
In this paper, we further extend the local radial basis function collocation method (LRBFCM)
for efficient computation of band structures of phononic crystals from 2D to 3D. The proposed …

A local RBF collocation method for band structure computations of 2D solid/fluid and fluid/solid phononic crystals

H Zheng, C Zhang, Y Wang, W Chen… - International Journal …, 2017 - Wiley Online Library
In this paper, an efficient local radial basis function collocation method (LRBFCM) is
presented for computing the band structures of the two‐dimensional (2D) solid/fluid and …

Time-space-domain mesh-free finite difference based on least squares for 2D acoustic-wave modeling

B Li, Y Liu, MK Sen, Z Ren - Geophysics, 2017 - library.seg.org
Finite-difference (FD) methods approximate derivatives through a weighted summation of
function values from neighboring nodes. Traditionally, these neighboring nodes are …

A mesh-free finite-difference method for elastic wave propagation in the frequency-domain

J Takekawa, H Mikada - Computers & geosciences, 2018 - Elsevier
We developed an innovative finite-difference method for elastic wave propagation in the
frequency-domain. The method is a class of mesh-free method which can discretize …