Efficient implementation of essentially non-oscillatory shock-capturing schemes
Journal of Computational Physics
Journal of Computational Physics
Efficient implementation of weighted ENO schemes
Journal of Computational Physics
Coupling Boltzmann and Navier-Stokes equations by friction
Journal of Computational Physics
An adaptive domain decomposition procedure for Boltzmann and Euler equations
Journal of Computational and Applied Mathematics
The Runge-Kutta discontinuous Galerkin method for conservation laws V multidimensional systems
Journal of Computational Physics
The Local Discontinuous Galerkin Method for Time-Dependent Convection-Diffusion Systems
SIAM Journal on Numerical Analysis
Hybrid atomistic-continuum formulations and the moving contact-line problem
Journal of Computational Physics
Runge–Kutta Discontinuous Galerkin Methods for Convection-Dominated Problems
Journal of Scientific Computing
A Local Discontinuous Galerkin Method for KdV Type Equations
SIAM Journal on Numerical Analysis
A smooth transition model between kinetic and hydrodynamic equations
Journal of Computational Physics
A particle-particle hybrid method for kinetic and continuum equations
Journal of Computational Physics
Numerical properties of high order discrete velocity solutions to the BGK kinetic equation
Applied Numerical Mathematics
Recovering doping profiles in semiconductor devices with the Boltzmann-Poisson model
Journal of Computational Physics
Hi-index | 31.46 |
In this paper we develop a domain decomposition method (DDM), based on the discontinuous Galerkin (DG) and the local discontinuous Galerkin (LDG) methods, for solving multiscale problems involving macro sub-domains, where a macro model is valid, and micro sub-domains, where the macro model is not valid and a more costly micro model must be used. We take two examples, one from compressible gas dynamics where the micro sub-domains are around shocks, contacts and corners of rarefaction fans, and another one from semiconductor device simulations where the micro sub-domains are around the jumps in the doping profile. The macro model is taken as the Euler equations for the gas dynamics problem and as a hydrodynamic model and a high field model for the semiconductor device problem. The micro model for both problems is taken as a kinetic equation. We pay special attention to the effective coupling between the macro sub-domains and the micro sub-domains, in which we utilize the advantage of the discontinuous Galerkin method in its compactness of the computational stencil. Numerical results demonstrate the effectiveness of our DDM-DG method in solving such multi-scale problems.