Dependence of Perpendicular Viscosity on Magnetic Fluctuations in a Stochastic Topology.
Phys Rev Lett
; 120(22): 225002, 2018 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-29906181
ABSTRACT
In a magnetically confined plasma with a stochastic magnetic field, the dependence of the perpendicular viscosity on the magnetic fluctuation amplitude is measured for the first time. With a controlled, â¼ tenfold variation in the fluctuation amplitude, the viscosity increases â¼100-fold, exhibiting the same fluctuation-amplitude-squared dependence as the predicted rate of stochastic field line diffusion. The absolute value of the viscosity is well predicted by a model based on momentum transport in a stochastic field, the first in-depth test of this model.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Suécia