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- ItemGlobal strong solutions of the full Navier-Stokes and Q-tensor system for nematic liquid crystal flows in 2D: Existence and long-time behavior(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2015) Cavaterra, Cecilia; Rocca, Elisabetta; Wu, Hao; Xu, XiangWe consider a full Navier-Stokes and Q-tensor system for incompressible liquid crystal flows of nematic type. In the two dimensional periodic case, we prove the existence and uniqueness of global strong solutions that are uniformly bounded in time. This result is obtained without any smallness assumption on the physical parameter xi that measures the ratio between tumbling and aligning effects of a shear flow exerting over the liquid crystal directors. Moreover, we show the uniqueness of asymptotic limit for each global strong solution as time goes to infinity and provide an uniform estimate on the convergence rate.
- ItemAsymptotic behavior of a hydrodynamic system in the nematic liquid crystal flows(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2009) Liu, Chun; Wu, Hao; Xu, XiangIn this paper we study the long time behavior of the classical solutions to a hydrodynamical system modeling the flow of nematic liquid crystals. This system consists of a coupled system of Navier--Stokes equations and kinematic transport equations for the molecular orientations. By using a suitable Lojasiewicz--Simon type inequality, we prove the convergence of global solutions to single steady states as time tends to infinity. Moreover, we provide estimates for the convergence rate.