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arXiv 2106.04780math.AP
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可压缩流体定常Cahn-Hillard/Navier-斯托克斯方程的弱解

Weak solutions to the stationary Cahn-Hillard/Navier-Stokes equations for compressible fluids

Zhilei Liang, Dehua Wang

摘要:

本文研究三维有界区域内定常可压缩流动的Cahn-Hilliard/Navier-斯托克斯方程。控制方程由描述可压缩流体流动的定常Navier-斯托克斯方程和描述质量浓度差的定常Cahn-Hilliard型扩散方程组成。证明了当绝热指数$γ$满足$γ>\frac{4}{3}$时,方程存在弱解.证明是基于加权总能量估计和新技术的发展,以克服困难的毛细管应力。

英文摘要:

We are concerned with the Cahn-Hilliard/Navier-Stokes equations for the stationary compressible flows in a three-dimensional bounded domain. The governing equations consist of the stationary Navier-Stokes equations describing the compressible fluid flows and the stationary Cahn-Hilliard type diffuse equation for the mass concentration difference. We prove the existence of weak solutions when the adiabatic exponent $γ$ satisfies $γ>\frac{4}{3}$. The proof is based on the weighted total energy estimates and the new techniques developed to overcome the difficulties from the capillary stress.

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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