Stationary solutions to the one-dimensional micropolar fluid model in a half line: Existence, stability and convergence rate

Stationary solutions to the one-dimensional micropolar fluid model in a half line: Existence, stability and convergence rate
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半线一维微极性流体模型的平稳解:存在性、稳定性和收敛速度

DOI:
10.1016/j.jmaa.2016.11.065
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发表时间:
2017-05
影响因子:
1.3
通讯作者:
Yin Haiyan
Yin Haiyan
中科院分区:
数学3区
文献类型:
--
作者:
Cui Haibo;Yin Haiyan

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本文研究了半直线R+:=(0,∞)上一维微极流体模型初边值问题解的渐近性态.我们的思想主要来源于文献[12],它描述了半直线上非等熵Navier-Stokes方程解的大时间行为。与不考虑微旋转速度的Navier-Stokes方程相比,微旋转速度的存在给我们带来了一些额外的麻烦。当初始扰动属于加权Sobolev空间时,我们得到了整体解向相应平稳解的收敛速度。用加权能量法给出了证明。
In this paper, we study the asymptotic behavior of solutions to the initial boundary value problem for the one-dimensional micropolar fluid model in a half line R+:=(0,∞). Our idea mainly comes from [12] which describes the large time behavior of solutions for non-isentropic Navier–Stokes equations in a half line. Compared with Navier–Stokes equations in the absence of the microrotation velocity, the microrotation velocity brings us some additional troubles. We obtain the convergence rate of global solutions toward corresponding stationary solutions if the initial perturbation belongs to the weighted Sobolev space. The proofs are given by a weighted energy method.
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