A coupled ALE–AMR method for shock hydrodynamics

Title : Center for Radiative Shock Hydrodynamics

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...

Shock Wave Solutions for Radiation Hydrodynamics

This study describes a semi-analytic solution of planar radiative shock waves in which the radiation model is grey nonequilibrium diffusion. The solution may be used to verify radiation-hydrodynamics codes. Comparisons are made with the equilibrium diffusion solutions of Lowrie and Rauenzahn [1]. Although the physics of radiative shocks are fairly well known, previous solutions have been approx...

Shock profiles in radiative hydrodynamics

There exists a huge variety of models intended to describe, with more or less accuracy, radiative transfer phenomena. Of course these models are more or less complex, and retain more or less details of the physics. The choice of a model among the list is definitely application-dependent, driven by the leading phenomena in the considered situation, thus depending on the values of the physical pa...

Hybrid Use of OmpSs for a Shock Hydrodynamics Proxy Application

The LULESH proxy application models the behavior of the ALE3D multi-physics code with an explicit shock hydrodynamics problem, and is made in order to evaluate interactions between programming models and architectures, using a representative code significantly less complex than the application it models. As identified in the PRACE deliverable D7.2.1 [1], the OmpSs programming model specifically...