Topological structures of the resistive pressure gradient turbulence with averaged poloidal flow Articles uri icon

publication date

  • October 2014

start page

  • 103005

issue

  • 10

volume

  • 54

International Standard Serial Number (ISSN)

  • 0029-5515

Electronic International Standard Serial Number (EISSN)

  • 1741-4326

abstract

  • When a significant averaged poloidal flow is generated by the resistive pressure-gradient-driven turbulence the topological properties of the flow structures can change in some radial regions where the shear flow is large. We have applied the topological analysis approach that we have developed (2013 J. Phys. A: Math. Theor. 46 375501) to this situation and found that in addition to the filamentary vortex structures there are deformed toroidal structures that seem to act as transport barriers. Analysis of all these structures is presented here.

keywords

  • plasma turbulence; turbulent flows; magnetohydrodynamics