国家天元数学中部中心学术报告 | 琚强昌 研究员 (北京应用物理与计算数学研究所)

发布时间: 2023-11-23 15:45

报告题目:Diffusion Limit of the Fluid Models for the Coupling of Radiation and Hydrodynamics

报告时间:2023-12-02   09:50-10:40

报 告 人 :琚强昌  研究员  北京应用物理与计算数学研究所

报告地点:理学院东北楼四楼学术报告厅

Abstract:In this talk, I will introduce the diffusion limit of the fluid models for the coupling of radiation and hydrodynamics. We consider the coupling of the classical Euler system of inviscid gas dynamics and the transfer equation for photons. The formal expansions for both the equilibrium and non-equilibrium diffusion limits will be presented. Finally , I will introduce our recent works on the rigorous proof of the limit for some simplified approximations models with non-relativistic source terms.