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Updated: Jun 19, 2026
07:17
Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Global scale-invariant dissipation in collisionless plasma turbulence.
K H Kiyani1, S C Chapman, Yu V Khotyaintsev
1Centre for Fusion, Space and Astrophysics; University of Warwick, Coventry CV4 7AL, United Kingdom. k.kiyami@warwick.ac.uk
Physical Review Letters
|October 2, 2009
Summary
Collisionless plasma turbulence shows a shift from intermittent to monoscaling behavior in its dissipation range. This finding provides key data for understanding energy dissipation in turbulent space plasmas.
Area of Science:
- Space Physics
- Plasma Physics
- Turbulence Theory
Background:
- Collisionless plasma turbulence is a fundamental process in astrophysical environments.
- Understanding energy dissipation mechanisms is crucial for plasma physics.
- Previous studies suggested multifractal properties in the inertial range.
Purpose of the Study:
- To analyze the dissipation range of collisionless plasma turbulence.
- To investigate the transition from inertial to dissipation scales.
- To provide observational constraints on turbulence theories.
Main Methods:
- Utilized in situ high-frequency magnetic field measurements.
- Employed a higher-order multiscale analysis.
- Analyzed data from the Cluster spacecraft in the solar wind.
Main Results:
- Observed a crossover from multifractal intermittent turbulence to non-Gaussian monoscaling.
- Data spanned five decades in temporal scales.
- Confirmed distinct scaling behaviors in inertial and dissipation ranges.
Conclusions:
- The dissipation range of collisionless plasma turbulence exhibits non-Gaussian monoscaling.
- This transition is a significant finding for turbulence theories.
- Provides strong observational evidence for dissipation mechanisms in plasmas.
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