Journal
PHYSICS OF PLASMAS
Volume 24, Issue 11, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5000343
Keywords
-
Categories
Funding
- JSPS, Japan [16K18335, 16H02442, 15H02155, 17H06089, 17K06994]
- NIFS [NIFS15KNST089, NIFS17KNST122]
- RIAM of Kyushu University
- Grants-in-Aid for Scientific Research [15H02155, 16K18335, 17K06994, 17H06089] Funding Source: KAKEN
Ask authors/readers for more resources
The topological bifurcation of the flow in non-equilibrium magnetized plasmas is demonstrated by a turbulence simulation. A system with two generic sources of turbulence, the gradients of density and parallel flow, is considered. Topological index of the flow is introduced, in order to indicate the chirality of flow pattern. We here report that the turbulence-driven flow forms the structure of co-axial helixes with opposite chirality. By changing the source of plasma particles, which modifies the density gradient, the transition between three turbulent states is obtained. In addition to the two turbulent states, which are dominated by the drift wave and the D'Angelo mode, respectively, the new state is found. In this third state, fluctuations are driven by both of the free energy sources simultaneously, and compete with the others. The result illustrates the generic feature of turbulence flow generation in non-equilibrium magnetized plasmas. Published by AIP Publishing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available