TITLE:
An Approach to Plasma Wake Studying
AUTHORS:
Gennadii V. Gembarzhevskii
KEYWORDS:
Turbulentplasma Wake, Alternation, Over-Heating Instability, Reduced-Order Model, Van-der-Pole Oscillators, Vortex Streets Synchronization
JOURNAL NAME:
Journal of Modern Physics,
Vol.6 No.1,
January
22,
2015
ABSTRACT: The
influence of a glow electrical
discharge on the wake behind two cylinders was studied. This effect
consists in a redistribution of the power in the velocity pulsation spectrum
due to the discharge action on fluid flow. To treat this observation, we need a
simple model of intermittent turbulent
wake in the vicinity of cylinders. A variant of such model has been developed
in the form of two coupled van-der-Pole oscillators representing two
interacting von Karman vortex streets behind the cylinders. According to the
model, the set of the global wake modes and its concurrence are discussed. Accordingly,
a mechanism of the glow discharge effect on the cylinders wake has been
proposed.