Radiation hydrodynamics including irradiation and adaptive mesh refinement with AZEuS

Local Adaptive Mesh Refinement for Shock Hydrodynamics

The aim of this work is the development of an automatic, adaptive mesh refinement strategy for solving hyperbolic conservation laws in two dimensions. There are two main difficulties in doing this. The first problem is due to the presence of discontinuities in the solution and the effect on them of discontinuities in the mesh. The second problem is how to organize the algorithm to minimize memo...

Adaptive Mesh Refinement and its Application to Magneto-Hydrodynamics

In this paper we present three improvements over the BergerColella’s adaptive mesh refinement (AMR) approach: adaptive clustering algorithm, conservative prolongation and restriction for cylindrical and spherical grid, and divergence-free reconstruction for AMR.

Ram: a Relativistic Adaptive Mesh Refinement Hydrodynamics Code

We have developed a new computer code, RAM, to solve the conservative equations of special relativistic hydrodynamics (SRHD) using adaptive mesh refinement (AMR) on parallel computers. We have implemented a characteristic-wise, finite difference, weighted essentially non-oscillatory (WENO) scheme using the full characteristic decomposition of the SRHD equations to achieve fifth order accuracy i...

Radiation Transport in Adaptive Mesh Refinement : Methodology and Application

Gravitational Collapse and Fragmentation in Molecular Clouds with Adaptive Mesh Refinement Hydrodynamics

We describe a powerful methodology for numerical solution of 3-D self-gravitational hydrodynamics problems with extremely high resolution. Our method utilizes the technique of local adaptive mesh refinement (AMR), employing multiple grids at multiple levels of resolution. These grids are automatically and dynamically added and removed as necessary to maintain adequate resolution. This technolog...