Scale dependence of energy transfer in turbulent plasma. Yang, Y., Wan, M., Matthaeus, W., Sorriso-Valvo, L., Parashar, T., Lu, Q., Shi, Y., & Chen, S. Monthly Notices of the Royal Astronomical Society, 482(4):4933-4940, Oxford University Press, 2019. cited By 15
Paper doi abstract bibtex In the context of space and astrophysical plasma turbulence and particle heating, several vocabularies emerge for estimating turbulent energy dissipation rate, including Kolmogorov–Yaglom third-order law and, in its various forms, j · E (work done by the electromagnetic field on particles), and − (P · ∇) · u (pressure–strain interaction), to name a couple. It is now understood that these energy transfer channels, to some extent, are correlated with coherent structures. In particular, we find that different energy dissipation proxies, although not point-wise correlated, are concentrated in proximity to each other, for which they decorrelate in a few ion inertial scales. However, the energy dissipation proxies dominate at different scales. For example, there is an inertial range over which the third-order law is meaningful. Contributions from scale bands stemming from scale-dependent spatial filtering show that the energy exchange through j · E mainly results from large scales, while the energy conversion from fluid flow to internal through − (P · ∇) · u dominates at small scales. © 2018 The Author(s).
@ARTICLE{Yang20194933,
author={Yang, Y. and Wan, M. and Matthaeus, W.H. and Sorriso-Valvo, L. and Parashar, T.N. and Lu, Q. and Shi, Y. and Chen, S.},
title={Scale dependence of energy transfer in turbulent plasma},
journal={Monthly Notices of the Royal Astronomical Society},
year={2019},
volume={482},
number={4},
pages={4933-4940},
doi={10.1093/mnras/sty2977},
note={cited By 15},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060821523&doi=10.1093%2fmnras%2fsty2977&partnerID=40&md5=300ff570377a1c1b75a4f08f0d6e7dd0},
abstract={In the context of space and astrophysical plasma turbulence and particle heating, several vocabularies emerge for estimating turbulent energy dissipation rate, including Kolmogorov–Yaglom third-order law and, in its various forms, j · E (work done by the electromagnetic field on particles), and − (P · ∇) · u (pressure–strain interaction), to name a couple. It is now understood that these energy transfer channels, to some extent, are correlated with coherent structures. In particular, we find that different energy dissipation proxies, although not point-wise correlated, are concentrated in proximity to each other, for which they decorrelate in a few ion inertial scales. However, the energy dissipation proxies dominate at different scales. For example, there is an inertial range over which the third-order law is meaningful. Contributions from scale bands stemming from scale-dependent spatial filtering show that the energy exchange through j · E mainly results from large scales, while the energy conversion from fluid flow to internal through − (P · ∇) · u dominates at small scales. © 2018 The Author(s).},
publisher={Oxford University Press},
issn={00358711},
coden={MNRAA},
document_type={Article},
source={Scopus},
}
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