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arXiv 2409.11809math.APmath-phmath.MP
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由动理学理论导出的带滑移边界条件的定常可压缩Navier-Stokes-Fourier系统

Steady compressible Navier-Stokes-Fourier system with slip boundary conditions arising from kinetic theory

Renjun Duan, Junhao Zhang

AI总结:

本文研究带从动理学导出的广义滑移边界条件的定常可压缩Navier-Stokes-Fourier系统边值问题,通过构造新变分形式和不动点论证,证明壁温接近正常数时强解的存在唯一性,解决了速度温度耦合与边界密度依赖带来的困难。

摘要:

本文研究通道域$(0,1)\times\mathbb{T}^2$上定常可压缩Navier-Stokes-Fourier系统的边值问题,该系统带一类广义滑移边界条件,这类边界条件由Coron\cite{Coron-JSP-1989}系统地从Boltzmann方程导出,随后Aoki等人\cite{Aoki-Baranger-Hattori-Kosuge-Martalo-Mathiaud-Mieussens-JSP-2017}也进行了相关推导。我们证明了当壁面温度接近某一正常数时,强解在$(L_{0}^{2}\cap H^{2}(Ω))\times V^{3}(Ω)\times H^{3}(Ω)$空间中的存在性与唯一性。证明依赖于为相应线性化问题构造新的变分形式,并采用不动点论证。主要困难源于速度与温度导数的相互作用,以及密度对边界的依赖效应。

英文摘要:

This paper studies 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 \cite{Coron-JSP-1989} and later by Aoki et al \cite{Aoki-Baranger-Hattori-Kosuge-Martalo-Mathiaud-Mieussens-JSP-2017}. We establish the existence and uniqueness of strong solutions in $(L_{0}^{2}\cap H^{2}(Ω))\times V^{3}(Ω)\times H^{3}(Ω)$ 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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