摘要
Suppression of spiral wave and turbulence in the complex Cinzburg-Landau equation (CCLE) plays a prominent role in nonlinear science and complex dynamical system. In this paper, the nonlinear behavior of the proposed drive-response system, which consists of two coupled OGLEs, is investigated and controlled by a state error feedback controller with the lattice Boltzmann method. First, spiral wave appropriate parameters of the response system under the no-flux and turbulence are, respectively, generated by selecting boundary and perpendicular gradient initial conditions. Then, based on the random initial condition, the target wave yielded by introducing spatially localized inhomogeneity into the drive system is applied on the above response system. The numerical simulation results show that the spiral wave and turbulence existing in the response system could be successfully eliminated by the target wave in the drive system during a short evolution time. Furthermore, it turns out that the transient time for the drive course is related to the control intensity imposed on the whole media.
基金
Supported by the National Natural Science Foundations of China under Grant Nos.61202051,11272132
the Special Fund for Basic Scientific Research of Central Colleges
China University of Geosciences Wuhan under Grant Nos.CUG110828 and CUG130416