Bibliographic Details
| Title: |
A critical transition of two-dimensional flow in toroidal geometry. |
| Authors: |
Agoua, Wesley1, Favier, Benjamin2, Morales, Jorge3, Bos, Wouter J. T.1 wouter.bos@ec-lyon.fr |
| Source: |
Journal of Fluid Mechanics. 6/10/2024, Vol. 988, p1-15. 15p. |
| Subjects: |
Turbulent mixing, Coherent structures, Axial flow, Transition flow, Plasma turbulence |
| Abstract: |
We investigate two-dimensional (2-D) axisymmetric flow in toroidal geometry, with a focus on a transition between 2-D three-component flow and 2-D two-component flow. This latter flow state allows a self-organization of the system to a quiescent dynamics, characterized by long-living coherent structures. When these large-scale structures orient in the azimuthal direction, the radial transport is reduced. Such a transition, if it can be triggered in toroidally confined fusion plasmas, is beneficial for the generation of zonal flows and should consequently result in a flow field beneficial for confinement. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
