Multi-compartment head modeling in EEG: Unstructured boundary-fitted tetra meshing with subcortical structures

F Galaz Prieto, J Lahtinen, M Samavaki, S Pursiainen - Plos one, 2023 - journals.plos.org
This paper introduces an automated approach for generating a finite element (FE)
discretization of a multi-compartment human head model for electroencephalographic (EEG) …

[HTML][HTML] A generalised formulation of G-continuous Bezier elements applied to non-linear MHD simulations

SJP Pamela, GTA Huijsmans, M Hoelzl… - Journal of …, 2022 - Elsevier
The international tokamak ITER is progressing towards assembly completion and first-
plasma operation, which will be a physics and engineering challenge for the fusion …

Efficient high-order radial basis-function-based differential quadrature–finite volume method for incompressible flows on unstructured grids

YY Liu, LM Yang, C Shu, HW Zhang - Physical Review E, 2021 - APS
This paper presents an efficient high-order radial basis-function-based differential
quadrature–finite volume method for incompressible flows on unstructured grids. In this …

A new adaptation strategy for multi-resolution method

L Fu, T Liang - Journal of Scientific Computing, 2022 - Springer
Adaptive mesh refinement (AMR) and wavelet-based multi-resolution technique, which
refine the spatial resolution in regions of interest and coarsen the mesh in other regions, are …

Jacobian-free Newton–Krylov method for the simulation of non-thermal plasma discharges with high-order time integration and physics-based preconditioning

AD Gomez, N Deak, F Bisetti - Journal of Computational Physics, 2023 - Elsevier
A preconditioning framework for the numerical simulation of non-thermal streamer
discharges is developed using the Jacobian-free Newton-Krylov (JFNK) method. A reduced …

An adaptive Newton-based free-boundary Grad-Shafranov solver

DA Serino, Q Tang, XZ Tang, TV Kolev… - arXiv preprint arXiv …, 2024 - arxiv.org
Equilibriums in magnetic confinement devices result from force balancing between the
Lorentz force and the plasma pressure gradient. In an axisymmetric configuration like a …

Stabilized bi-cubic Hermite Bézier finite element method with application to Gas-plasma interactions occurring during massive material injection in Tokamaks

A Bhole, B Nkonga, J Costa, G Huijsmans… - … & Mathematics with …, 2023 - Elsevier
Abstract Development of a numerical tool based upon the high-order, high-resolution
Galerkin finite element method (FEM) often encounters two challenges: First, the Galerkin …

Structure preserving transport stabilized compatible finite element methods for magnetohydrodynamics

GA Wimmer, XZ Tang - Journal of Computational Physics, 2024 - Elsevier
We present compatible finite element space discretizations for the ideal compressible
magnetohydrodynamic equations. The magnetic field is considered both in div-and curl …

High Order Structure-Preserving Finite Difference WENO Schemes for MHD Equations with Gravitation in all Sonic Mach Numbers

W Chen, K Wu, T Xiong - Journal of Scientific Computing, 2024 - Springer
In this paper, we develop a high-order semi-implicit (SI) structure-preserving finite difference
weighted essentially nonoscillatory (WENO) scheme for magnetohydrodynamic (MHD) …

Numerical Methods for Fourth-Order PDEs on Overlapping Grids with Application to Kirchhoff–Love Plates

L Li, H Ji, Q Tang - Journal of Scientific Computing, 2024 - Springer
We describe novel numerical methods for solving a class of high-order time-dependent
PDEs on general geometries, which involve second-order derivatives in time and up-to …