On optimal boundary control of Ericksen-Leslie system in dimension two

被引:10
|
作者
Liu, Qiao [1 ]
Wang, Changyou [2 ]
Zhang, Xiaotao [3 ]
Zhou, Jianfeng [4 ]
机构
[1] Hunan Normal Univ, Coll Math & Stat, Key Lab High Performance Comp & Stochast Informat, Changsha 410081, Hunan, Peoples R China
[2] Purdue Univ, Dept Math, W Lafayette, IN 47907 USA
[3] Fudan Univ, Sch Math Sci, Shanghai 200433, Peoples R China
[4] Xiamen Univ, Sch Math Sci, Xiamen 361005, Fujian, Peoples R China
关键词
LIQUID-CRYSTAL FLOWS; NAVIER-STOKES SYSTEM; SUFFICIENT CONDITIONS; WELL-POSEDNESS; WEAK SOLUTION; REGULARITY; EXISTENCE; UNIQUENESS; EVOLUTION; BEHAVIOR;
D O I
10.1007/s00526-019-1676-z
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we consider the boundary value problem of a simplified Ericksen-Leslie system in dimension two with non-slip boundary condition for the velocity field u and time-dependent boundary condition for the director field d of unit length. For such a system, we first establish the existence of a global weak solution that is smooth away from finitely many singular times, then establish the existence of a unique global strong solution that is smooth for t > 0 under the assumption that the image of boundary data is contained in the hemisphere S-+(2). Finally, we apply these theorems to the problem of optimal boundary control of the simplified Ericksen-Leslie system and show both the existence and a necessary condition of an optimal boundary control.
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页数:64
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