Multiphysics simulations: Challenges and opportunities
We consider multiphysics applications from algorithmic and architectural perspectives,
where “algorithmic” includes both mathematical analysis and computational complexity, and …
where “algorithmic” includes both mathematical analysis and computational complexity, and …
A novel robust strategy for discontinuous Galerkin methods in computational fluid mechanics: Why? When? What? Where?
In this paper we will review a recent emerging paradigm shift in the construction and
analysis of high order Discontinuous Galerkin methods applied to approximate solutions of …
analysis of high order Discontinuous Galerkin methods applied to approximate solutions of …
Adaptive mesh refinement for hyperbolic systems based on third-order compact WENO reconstruction
In this paper we generalise to non-uniform grids of quad-tree type the Compact WENO
reconstruction of Levy et al.(SIAM J Sci Comput 22 (2): 656–672, 2000), thus obtaining a …
reconstruction of Levy et al.(SIAM J Sci Comput 22 (2): 656–672, 2000), thus obtaining a …
Enforcing the Courant–Friedrichs–Lewy condition in explicitly conservative local time step** schemes
An optimally efficient explicit numerical scheme for solving fluid dynamics equations, or any
other parabolic or hyperbolic system of partial differential equations, should allow local …
other parabolic or hyperbolic system of partial differential equations, should allow local …
A class of multirate infinitesimal GARK methods
A Sandu - SIAM Journal on Numerical Analysis, 2019 - SIAM
Differential equations arising in many practical applications are characterized by multiple
time scales. Multirate time integration seeks to solve them efficiently by discretizing each …
time scales. Multirate time integration seeks to solve them efficiently by discretizing each …
An efficient local time-step** scheme for solution of nonlinear conservation laws
L Krivodonova - Journal of Computational Physics, 2010 - Elsevier
We develop an efficient local time-step** algorithm for the method of lines approach to
numerical solution of transient partial differential equations. The need for local time-step** …
numerical solution of transient partial differential equations. The need for local time-step** …
[HTML][HTML] High-order explicit local time-step** methods for damped wave equations
MJ Grote, T Mitkova - Journal of Computational and Applied Mathematics, 2013 - Elsevier
Locally refined meshes impose severe stability constraints on explicit time-step** methods
for the numerical simulation of time dependent wave phenomena. Local time-step** …
for the numerical simulation of time dependent wave phenomena. Local time-step** …
Coupled multirate infinitesimal GARK schemes for stiff systems with multiple time scales
Traditional time discretization methods use a single timestep for the entire system of interest
and can perform poorly when the dynamics of the system exhibits a wide range of time …
and can perform poorly when the dynamics of the system exhibits a wide range of time …
A discontinuous Galerkin immersed boundary solver for compressible flows: Adaptive local time step** for artificial viscosity–based shock‐capturing on cut cells
We present a higher‐order cut cell immersed boundary method (IBM) for the simulation of
high Mach number flows. As a novelty on a cut cell grid, we evaluate an adaptive local time …
high Mach number flows. As a novelty on a cut cell grid, we evaluate an adaptive local time …
Extrapolated multirate methods for differential equations with multiple time scales
In this paper we construct extrapolated multirate discretization methods that allows one to
efficiently solve problems that have components with different dynamics. This approach is …
efficiently solve problems that have components with different dynamics. This approach is …