Problems of radiative hydrodynamics.

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...

Title : Center for Radiative Shock Hydrodynamics

Improved Finite-Volume Method for Radiative Hydrodynamics

Improved Finite-Volume Method for Radiative Hydrodynamics Alan Wray* Corresponding author: [email protected] * NASA Ames Research Center, USA Abstract: Fully coupled simulations of hydrodynamics and radiative transfer are essential to a number of fields ranging from astrophysics to engineering applications. Of particular interest in this work are hypersonic atmospheric entries and associate...

Introducing a Hybrid Radiative Transfer Method for Smoothed Particle Hydrodynamics

A new means of incorporating radiative transfer into smoothed particle hydrodynamics (SPH) is introduced, which builds on the success of two previous methods the polytropic cooling approximation as devised by Stamatellos et al (2007), and flux limited diffusion (e.g. Mayer et al 2007). This hybrid method preserves the strengths of its individual components, while removing the need for atmospher...

Global existence to the equilibrium diffusion model in radiative hydrodynamics

This paper is devoted to the analysis of the Cauchy problem for a system of PDEs arising in radiative hydrodynamics. This system, which comes from the so–called equilibrium diffusion regime, is a variant of the usual Euler equations where the energy and pressure functionals are modified to take into account the effect of radiation and the energy balance contains a nonlinear diffusion term actin...