English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

It is well known that the general radiation hydrodynamics models include two mainly coupled parts: one is the macroscopic fluid part, which is governed by the compressible Navier--Stokes--Fourier equations; another is the radiation field part, which is described by the transport equation of photons. Under the two physical approximations, “gray” approximation and P1 approximation, one can derive the so-called Navier--Stokes--Fourier--P1 approximation radiation hydrodynamics model from the general one. In this paper, we study the nonrelativistic limit problem for the Navier--Stokes--Fourier--P1 approximation model due to the fact that the speed of light is much larger than the speed of the macroscopic fluid. Our results give a rigorous derivation of the widely used macroscopic model in radiation hydrodynamics.

Nonrelativistic Limit of the Compressible Navier--Stokes--Fourier--P1 Approximation Model Arising in Radiation Hydrodynamics