Asymmetric wake from two closely located cylinders within the framework of one-dimensional model

Simple oscillatory model for wake hydrodynamics is constructed with the aim of physical modelling of complex object - turbulent plasma wake in glow discharge. A wake from not very closely located parallel cylinders assumed to be of the shape of the Von Karman streets pair, or a modified streets pair. Each street modelled by an oscillator of Van der Pole type. The specific features of our model are the follows: first - account for the nonlinear interaction of Von Karman streets in the area of their formation; second - explicit account for the oscillation frequency dependence on oscillation amplitude of the streets. Several global modes and intermittent regimes of the wake were revealed within the framework of the model. The main accent of this article is a description of two-frequency asymmetric mode of such two-cylinder wake. (paper)