PSP Bibliography



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Found 2 entries in the Bibliography.


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2021

On the violation of the zeroth law of turbulence in space plasmas

The zeroth law of turbulence states that, for fixed energy input into large-scale motions, the statistical steady state of a turbulent system is independent of microphysical dissipation properties. This behaviour, which is fundamental to nearly all fluid-like systems from industrial processes to galaxies, occurs because nonlinear processes generate smaller and smaller scales in the flow, until the dissipation - no matter how small - can thermalise the energy input. Using direct numerical simulations and theoretical arguments ...

Meyrand, R.; Squire, J.; Schekochihin, A.; Dorland, W.;

Published by: Journal of Plasma Physics      Published on: 05/2021

YEAR: 2021     DOI: 10.1017/S0022377821000489

space plasma physics; astrophysical plasmas; plasma nonlinear phenomena; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Nonlinear Sciences - Chaotic Dynamics; Physics - Plasma Physics; Parker Data Used

2020

In-situ Switchback Formation in the Expanding Solar Wind

Recent near-Sun solar-wind observations from Parker Solar Probe have found a highly dynamic magnetic environment, permeated by abrupt radial-field reversals, or "switchbacks." We show that many features of the observed turbulence are reproduced by a spectrum of Alfv\ enic fluctuations advected by a radially expanding flow. Starting from simple superpositions of low-amplitude outward-propagating waves, our expanding-box compressible magnetohydrodynamic simulations naturally develop switchbacks because (i) the normalized am ...

Squire, J.; Chandran, B.; Meyrand, R.;

Published by: The Astrophysical Journal      Published on: 03/2020

YEAR: 2020     DOI: 10.3847/2041-8213/ab74e1

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus



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