An unconditionally gradient stable numerical method for solving the Allen–Cahn equation

JW Choi, HG Lee, D Jeong, J Kim - Physica A: Statistical Mechanics and its …, 2009 - Elsevier
We consider an unconditionally gradient stable scheme for solving the Allen–Cahn equation
representing a model for anti-phase domain coarsening in a binary mixture. The continuous …

Kinematic dynamos using constrained transport with high order Godunov schemes and adaptive mesh refinement

R Teyssier, S Fromang, E Dormy - Journal of Computational Physics, 2006 - Elsevier
We propose to extend the well-known MUSCL-Hancock scheme for Euler equations to the
induction equation modeling the magnetic field evolution in kinematic dynamo problems …

A cell-centered adaptive projection method for the incompressible Navier–Stokes equations in three dimensions

DF Martin, P Colella, D Graves - Journal of Computational Physics, 2008 - Elsevier
We present a method for computing incompressible viscous flows in three dimensions using
block-structured local refinement in both space and time. This method uses a projection …

A parallel explicit/implicit time step** scheme on block-adaptive grids

G Tóth, DL De Zeeuw, TI Gombosi… - Journal of Computational …, 2006 - Elsevier
We present a parallel explicit/implicit time integration scheme well suited for block-adaptive
grids. The basic idea of the algorithm is that the time step** scheme can differ in the …

Modelling of the pellet deposition profile and∇ B-induced drift displacement in non-axisymmetric configurations

A Matsuyama, F Koechl, B Pégourié… - Nuclear …, 2012 - iopscience.iop.org
Drift displacement during density homogenization is modelled for hydrogen pellets injected
into the Large Helical Device (LHD). The pellet ablation and deposition profiles are …

A fully implicit numerical method for single-fluid resistive magnetohydrodynamics

DR Reynolds, R Samtaney, CS Woodward - Journal of Computational …, 2006 - Elsevier
We present a nonlinearly implicit, conservative numerical method for integration of the single-
fluid resistive MHD equations. The method uses a high-order spatial discretization that …

Adaptive mesh refinement for multiscale nonequilibrium physics

DF Martin, P Colella, M Anghel… - Computing in science & …, 2005 - ieeexplore.ieee.org
Adaptive mesh refinement for multiscale nonequilibrium physics Page 1 Along-standing
challenge in both ap- plied and theoretical physics is to fully understand and predict the …

[HTML][HTML] Comprehensive 3-D simulation and performance of ITER plasma facing and nearby components during transient events—Serious design issues

V Sizyuk, A Hassanein - Physics of Plasmas, 2018 - pubs.aip.org
A key obstacle to a successful magnetic fusion energy production in Tokamak reactors is
performance during abnormal events. Abnormal events include plasma disruptions, edge …

Implicit adaptive mesh refinement for 2D reduced resistive magnetohydrodynamics

B Philip, L Chacón, M Pernice - Journal of Computational Physics, 2008 - Elsevier
An implicit structured adaptive mesh refinement (SAMR) solver for 2D reduced
magnetohydrodynamics (MHD) is described. The time-implicit discretization is able to step …

Kinetic Monte Carlo simulation of esca** core plasma particles to the scrape-off layer for accurate response of plasma-facing components

V Sizyuk, A Hassanein - Nuclear Fusion, 2013 - iopscience.iop.org
During normal and disruptive operations in tokamak devices the escaped core plasma
particles are a potential threat to the divertor and nearby component lifetime as well as …