Collective effects in vortex movements in complex plasmas.
Phys Rev Lett
; 112(11): 115002, 2014 Mar 21.
Article
em En
| MEDLINE
| ID: mdl-24702381
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 nonzero 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.
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Base de dados:
MEDLINE
Assunto principal:
Nanopartículas
/
Gases em Plasma
/
Modelos Teóricos
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article