Alfvén wave collisions, the fundamental building block of plasma turbulence. II. Numerical solution

Nielson, K. D.; Howes, G. G.; Dorland, W.

doi:10.1063/1.4812807

Title: Alfvén wave collisions, the fundamental building block of plasma turbulence. II. Numerical solution

Journal Article · Mon Jul 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4812807· OSTI ID:22227940

Nielson, K. D.; Howes, G. G. ^[1]; Dorland, W. ^[2]

Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)
Department of Physics, University of Maryland, College Park, Maryland 20742-3511 (United States)

This paper presents the numerical verification of an asymptotic analytical solution for the nonlinear interaction between counterpropagating Alfvén waves, the fundamental building block of astrophysical plasma turbulence. The analytical solution, derived in the weak turbulence limit using the equations of incompressible MHD, is compared to a nonlinear gyrokinetic simulation of an Alfvén wave collision. The agreement between these methods signifies that the incompressible solution satisfactorily describes the essential dynamics of the nonlinear energy transfer, even under the weakly collisional plasma conditions relevant to many astrophysical environments.

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OSTI ID:: 22227940

Journal Information:: Physics of Plasmas, Vol. 20, Issue 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X

Country of Publication:: United States

Language:: English

References (2)

Nonlinear phase mixing and phase-space cascade of entropy in gyrokinetic plasma turbulence Tatsuno, T.; Dorland, W.; Schekochihin, A. A. arXiv https://doi.org/10.48550/arxiv.0811.2538	text	January 2008
Gyrokinetic Simulations of Solar Wind Turbulence from Ion to Electron Scales Howes, Gregory G.; TenBarge, Jason M.; Dorland, William arXiv https://doi.org/10.48550/arxiv.1104.0877	text	January 2011

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On the ion-inertial range density power spectra in solar wind turbulence Treumann, Rudolf A.; Baumjohann, Wolfgang; Narita, Yasuhito Annales Geophysicae https://doi.org/10.5194/angeo-2018-129	posted_content	December 2018

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Title: Alfvén wave collisions, the fundamental building block of plasma turbulence. II. Numerical solution

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