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数苑经纬讲坛(36):Steady compressible Navier-Stokes-Fourier system with slip boundary conditions arising from kinetic theory

发布时间:2025-10-27 作者: 浏览次数:

报告人:段仁军 教授

时间:2025年10月28日(周二上午)10:00-11:00

地点:国交2号楼315会议室

摘要:This talk concerns the boundary value problem on the steady compressible Navier-Stokes-Fourier system in a channel domain $(0,1)\times\mathbb{T}^2$ with a class of generalized slip boundary conditions that were systematically derived from the Boltzmann equation by Coron [JSP, 1989] and later by Aoki et al. [JSP, 2017].  We establish the existence and uniqueness of strong solutions in $(L_{0}^{2}\cap H^{2}(\Omega))\times V^{3}(\Omega)\times H^{3}(\Omega)$ provided that the wall temperature is near a positive constant.  The proof relies on the construction of a new variational formulation for the corresponding linearized problem and employs a fixed point argument. The main difficulty arises from the interplay of velocity and temperature derivatives together with the effect of density dependence on the boundary.

报告人简介:段仁军,香港中文大学教授。