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Turbulence control by developing a spiral wave with a periodic signal injection in the complex Ginzburg-Landau
Hong Zhang1, Bambi Hu, Gang Hu
1Department of Physics and Centre for Nonlinear Studies, Hong Kong Baptist University, China. hzang@phys.hkbu.edu.hk
Abstract:
Turbulence control in the two-dimensional complex Ginzburg-Landau equation is investigated. An approach is proposed for the purpose of control. In the presence of a small spiral wave seed initiation, a fully developed turbulence can be completely annihilated by injecting a single periodic signal into a small fixed space area around the spiral wave tip. The control is achieved in a parameter region where the spiral wave of the uncontrolled system is absolutely unstable. The robustness, convenience, and high control efficiency of this method are emphasized, and the mechanism underlying these practical advantages is intuitively understood.
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