Subash Adhikari - Energy transfer in reconnection and turbulence

Journal article

Subash Adhikari, Tulasi N. Parashar, Michael A. Shay, William H. Matthaeus, Prayash S. Pyakurel, Samuel Fordin, Julia E. Stawarz, Jonathan P. Eastwood
Physical Review E, vol. 104(065206), 2021

DOI: 10.1103/PhysRevE.104.065206

View PDF

Cite

APA Click to copy
Adhikari, S., Parashar, T. N., Shay, M. A., Matthaeus, W. H., Pyakurel, P. S., Fordin, S., … Eastwood, J. P. (2021). Energy transfer in reconnection and turbulence. Physical Review E, 104(065206). https://doi.org/10.1103/PhysRevE.104.065206

Chicago/Turabian Click to copy
Adhikari, Subash, Tulasi N. Parashar, Michael A. Shay, William H. Matthaeus, Prayash S. Pyakurel, Samuel Fordin, Julia E. Stawarz, and Jonathan P. Eastwood. “Energy Transfer in Reconnection and Turbulence.” Physical Review E 104, no. 065206 (2021).

MLA Click to copy
Adhikari, Subash, et al. “Energy Transfer in Reconnection and Turbulence.” Physical Review E, vol. 104, no. 065206, 2021, doi:10.1103/PhysRevE.104.065206.

BibTeX Click to copy

@article{subash2021a,
  title = {Energy transfer in reconnection and turbulence},
  year = {2021},
  issue = {065206},
  journal = {Physical Review E},
  volume = {104},
  doi = {10.1103/PhysRevE.104.065206},
  author = {Adhikari, Subash and Parashar, Tulasi N. and Shay, Michael A. and Matthaeus, William H. and Pyakurel, Prayash S. and Fordin, Samuel and Stawarz, Julia E. and Eastwood, Jonathan P.}
}

Abstract

Reconnection and turbulence are two of the most commonly observed dynamical processes in plasmas, but their relationship is still not fully understood. Using 2.5D kinetic particle-in-cell simulations of both strong turbulence and reconnection, we compare the cross-scale transfer of energy in the two systems by analyzing the generalization of the von Kármán Howarth equations for Hall magnetohydrodynamics, a formulation that subsumes the third-order law for steady energy transfer rates. Even though the large scale features are quite different, the finding is that the decomposition of the energy transfer is structurally very similar in the two cases. In the reconnection case, the time evolution of the energy transfer also exhibits a correlation with the reconnection rate. These results provide explicit evidence that reconnection dynamics fundamentally involves turbulence-like energy transfer.