Self-organisation of stochastic oscillators in a predator-prey model
Paper in proceedings, 2016

A predator-prey model of dual populations with stochastic oscillators is presented. A linear cross-coupling between the two populations is introduced following the coupling between the motions of a Wilberforce pendulum in two dimensions: one in the longitudinal and the other in torsional plain. Within each population a Kuramoto type competition between the phases is assumed. Thus, the synchronization state of the whole system is controlled by these two types of competitions. The results of the numerical simulations show that by adding the linear cross-coupling interactions predator-prey oscillations between the two populations appear which results in self-regulation of the system by a transfer of synchrony between the two populations. The model represents several important features of the dynamical interplay between the drift wave and zonal flow turbulence in magnetically confined plasmas, and a novel interpretation of the coupled dynamics of drift wave-zonal flow turbulence using synchronization of stochastic oscillator is discussed.

Author

Johan Anderson

Chalmers, Earth and Space Sciences, Plasma Physics and Fusion Energy

The 9th Chaotic Modeling and Simulation International Conference (CHAOS2016)

Vol. 9

Subject Categories

Physical Sciences

Fusion, Plasma and Space Physics

Areas of Advance

Energy

Roots

Basic sciences

More information

Created

10/7/2017