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.
arXiv comment5 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