April 15-17

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Author: Salomon Janhunen
Requested Type: Poster
Submitted: 2019-02-22 13:14:02

Co-authors: A. Smolyakov, O. Chapurin, D. Sydorenko, I. Kaganovich, Y. Raitses

Contact Info:
University of Texas at Austin
201 E 24th St
Austin, Texas   78712-1
USA

Abstract Text:
Anomalous conductivity due to instabilities is an important feature of E⨉B driven plasmas (see Refs 1,2). An important question that remains in this regime is whether the most unstable drift-cyclotron instabilities remain important or if ``demagnetization'' occurs that makes the modes more like ion sound. Long term behavior of the system has proven to be surprisingly challenging to simulate numerically with sufficient accuracy. We discuss recent work related to the evolution of fluctuations and associated heating observed in simulations, as well as analytical theory behind these phenomena.

1. S. Janhunen et al., Physics of Plasmas 25 (1), 011608 (2018)
2. S. Janhunen et al., Physics of Plasmas 25 (8), 082308 (2018)

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