Yaglom law for electrostatic turbulence in laboratory magnetized plasmas

F. Lepreti, V. Carbone, M. Spolaore, V. Antoni, R. Cavazzana, E. Martines, G. Serianni, P. Veltri, N. Vianello, M. Zuin

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Abstract

It has recently been shown that a Yaglom law for electrostatic turbulence, that is, a relation for the third-order mixed moment involving the particle number density as a passive scalar and the E×B drift velocity, can be deduced from a simple model of electrostatic fluctuations, which describes bursty turbulence in plasmas. In this letter, the existence of the Yaglom law for electrostatic turbulence in laboratory magnetized plasmas is reported for the first time. Using measurements of intermittent transport at the edge of the RFX-mod reversed field pinch plasma device, we found that the above scaling relation is nicely verified at intermediate scales of few centimeters. In this range of scales, that unambiguously represents the inertial range of electrostatic turbulence, we also analyze the intermittency properties of electrostatic turbulence by measuring anomalous scaling exponents of density and velocity structure functions. © EPLA, 2009.
Original languageEnglish
Article number25001
Pages (from-to)-
JournalEurophysics Letters
Volume86
Issue number2
DOIs
Publication statusPublished - 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Lepreti, F., Carbone, V., Spolaore, M., Antoni, V., Cavazzana, R., Martines, E., ... Zuin, M. (2009). Yaglom law for electrostatic turbulence in laboratory magnetized plasmas. Europhysics Letters, 86(2), -. [25001]. https://doi.org/10.1209/0295-5075/86/25001