On an exterior initial boundary value problem for Navier-Stokes equations

On an exterior initial boundary value problem for Navier-Stokes equations
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纳维-斯托克斯方程的外初边值问题

DOI:
10.1090/qam/1672187
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发表时间:
1999
影响因子:
0.8
通讯作者:
Y. Shibata
Y. Shibata
中科院分区:
数学4区
文献类型:
--
作者:
Y. Shibata

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-A w+(w· V)w+ Vq= f,对于x ∈ w= g,对于x ∈ < 90,Vw= 0,(SP)lim w(:r)=| X|其中Uoo是非零常数三维行向量,并且Q是IK 3中的外部域,具有光滑边界<0 f2。同时,我们还讨论了(SP)解关于小的L3-扰动的稳定性.更精确地说,让我们考虑非平稳问题:vt-A v+(v· V)v+ Vp= f,V· v= 0,t> 0,x 6 0,v= g,t> 0,x ∈ dfl,v(0,x)= a(x),ie!l,lim v(t,x)= uao v> 0。| a、|-> oo
—A w+(w• V) w+ Vq= f, Vw= 0 for x€ w= g for x E< 90,(SP) lim w (: r)=| x|—> OC where Uoo is a nonzero constant three-dimensional row vector and Q is an exterior domain in IK3 with smooth boundary< 9f2. Also, we discuss the stability property of the solutions of (SP) with respect to small L3-perturbation. To be more precise, let us consider the nonstationary problem: vt-A v+(v• V) v+ Vp= f, V• v= 0 for t> 0, x 6 O, v= g for t> 0, x£ dfl, v (0, x)= a (x) for ie! l, lim v (t, x)= uao vi> 0.| a;|—> oo