Collective effects in vortex movements in complex (dusty) plasmas
arXiv:1310.3983 · doi:10.1103/PhysRevLett.112.115002
Abstract
We study the onset and characteristics of vortices in complex (dusty) plasmas using two-dimensional simulations in a setup modeled after the PK-3 Plus laboratory. A small number of microparticles initially self-arranges in a monolayer around the void. As additional particles are introduced, an extended system of vortices develops due to a non-zero curl of the plasma forces. We demonstrate a shear-thinning effect in the vortices. Velocity structure functions and the energy and enstrophy spectra show that vortex flow turbulence is present that is in essence of the "classical" Kolmogorov type.
5 pages, 6 figures
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- Fractional Laplacian Spectral Approach to Turbulence in a Dusty Plasma Monolayer
- A review on the Vortex and Coherent Structures in Dusty Plasma Medium
- Experimental investigation of dynamical structures formation due to flowing complex plasma past an obstacle
- Spiral Waves in Driven Dusty Plasma Medium: Generalized Hydrodynamic Fluid Description
- Particle-resolved study of the onset of turbulence
- Anisotropic confinement effects in a two-dimensional plasma crystal
- Experiment and model for a Stokes layer in a strongly coupled dusty plasma
- Spontaneous dust pulse formation in the afterglow of complex plasmas under microgravity conditions
- Wake turbulence observed behind an upstream "extra" particle in a complex (dusty) plasma
- Effects of collision enhanced charging on dust crystal