Results 21 to 30 of about 6,805 (250)

Lifetime estimate for plasma turbulence [PDF]

open access: yesNonlinear Processes in Geophysics, 2017
A method is proposed to experimentally determine the intrinsic timescale or a decay rate of turbulent fluctuations. The method is based on the assumption that the Breit–Wigner spectrum model with a non-Gaussian frequency broadening is valid in the ...
Y. Narita   +5 more
doaj   +1 more source

α Effect and Magnetic Diffusivity β in Helical Plasma Under Turbulence Growth

open access: yesUniverse
We investigate the transport coefficients α and β in plasma systems with varying Reynolds numbers while maintaining a unit magnetic Prandtl number (PrM). The α and β tensors parameterize the turbulent electromotive force (EMF) in terms of the large-scale
Kiwan Park
doaj   +1 more source

Plasma Turbulence

open access: yesReviews of Modern Physics, 1960
"Prepared for the United States Atomic Energy Commission, under AEC Contract AT (04-3)-321, Plasma Turbulence Research." ; At head of title: STL/TR-60-0000-AE038. ; Mode of access: Internet.
openaire   +1 more source

The Impact of Turbulence on the Ionosphere and Magnetosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2021
An important property associated with turbulence in plasmas and fluids is anomalous transport. Plasma, being a good conductor, can in addition be affected by turbulence causing an anomalous resistivity that can significantly exceed its classical ...
Patrick Guio   +3 more
doaj   +1 more source

Shadowing effects in simulated Alcator C-Mod gas puff imaging data

open access: yesNuclear Materials and Energy, 2019
A synthetic gas puff imaging (GPI) diagnostic is applied to a gyrokinetic turbulence simulation of Alcator C-Mod with the objective of assessing the impact of turbulent plasma fluctuations on the GPI neutral density field.
D.P. Stotler   +5 more
doaj   +1 more source

Parametric dependence of microwave beam broadening by plasma density turbulence

open access: yesNuclear Fusion, 2023
High-power microwave beams used for heating and current drive in magnetically confined fusion plasmas can be broadened significantly by plasma turbulence, negatively impacting the efficiency of the machine.
L.A. Holland   +2 more
doaj   +1 more source

Plasma and Magnetic Field Turbulence in the Earth’s Magnetosheath at Ion Scales

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Crossing the Earth’s bow shock is known to crucially affect solar wind plasma including changes in turbulent cascade. The present review summarizes results of more than 15 years of experimental exploration into magnetosheath turbulence.
Liudmila Rakhmanova   +2 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

On the spectrum of mid-latitude sporadic-E irregularities [PDF]

open access: yesAnnales Geophysicae, 2000
We discuss the creation of mid-latitude sporadic-E plasma irregularities (with length-scales smaller than sporadic layer thickness) by the neutral atmosphere turbulence.
Yu. V. Kyzyurov
doaj   +1 more source

Dependence of Kinetic Plasma Turbulence on Plasma β [PDF]

open access: yesThe Astrophysical Journal Letters, 2018
Abstract We study the effects of plasma β (the ratio of plasma pressure to magnetic pressure) on the evolution of kinetic plasma turbulence using fully kinetic particle-in-cell simulations of decaying turbulence. We find that the plasma β systematically affects spectra, measures of intermittency, decay rates of turbulence fluctuations ...
Tulasi N. Parashar   +2 more
openaire   +2 more sources

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