Uniform attractors for three-dimensional Navier–Stokes equations with nonlinear damping
Uniform attractors for three-dimensional Navier–Stokes equations with nonlinear damping
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具有非线性阻尼的三维纳维斯托克斯方程的均匀吸引子
DOI:
10.1016/j.jmaa.2014.08.044
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发表时间:
2015-02
影响因子:
1.3
通讯作者:
Yanren Hou
中科院分区:
文献类型:
--
作者:
Xueli Song;Yanren Hou
This paper is concerned with the three-dimensional non-autonomous Navier–Stokes equation with nonlinear damping in 3D bounded domains. When the external force f 0 (x, t) is translation compact in L loc 2 (R; H), α> 0, 7 2≤ β≤ 5 and initial data u τ∈ V, we give a series of uniform estimates on the solutions. Based on these estimates, we prove the family of processes {U f (t, τ)}, f∈ H (f 0), is (V× H (f 0), V)-continuous. At the same time, by making use of Ascoli–Arzela theorem, we find {U f (t, τ)}, f∈ H (f 0), is (V, H 2 (Ω))-uniformly compact. So, using semiprocess theory, we obtain the existence of (V, V)-uniform attractor and (V, H 2 (Ω))-uniform attractor. And we prove the (V, V)-uniform attractor is actually the (V, H 2 (Ω))-uniform attractor.
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