P Manz et al 2009 Plasma Phys. Control. Fusion 51 035008 doi:10.1088/0741-3335/51/3/035008
P Manz, M Ramisch and U Stroth
Show affiliationsThe dual turbulent cascade is studied experimentally in two-dimensional wavenumber space. A two-field model is used for the analysis and tested on simulated data first. It is found that the energy of the turbulent fluctuations follows an inverse cascade to larger scales while enstrophy is transported in a direct cascade to smaller scales. This provides experimental evidence for the turbulent dual cascade in magnetized plasmas. The analysis also reveals the importance of non-local transfer to the cascading process.
Issue 3 (March 2009)
Received 18 August 2008, in final form 14 November 2008
Published 31 December 2008
P Manz et al 2009 Plasma Phys. Control. Fusion 51 035008
K D Hill et al 2005 Metrologia 42 03001
Hua Cheng et al 2008 Nanotechnology 19 025706
Gilad Perez JHEP12(2000)027
A L Alexandrov et al 2008 New J. Phys. 10 093025
S Ask et al 2008 JINST 3 P08002
Tuomas P J Knowles et al 2007 Nanotechnology 18 044031
Robert R Greenberg and Elizabeth A Mackey 2005 Metrologia 43 08003
F D A Aarão Reis and Janusz Stafiej 2007 J. Phys.: Condens. Matter 19 065125
C D McMullen and S Nandi 2008 J. Phys. G: Nucl. Part. Phys. 35 095002