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Adams CS, Moser AL, Hsu SC. Observation of Rayleigh-Taylor-instability evolution in a plasma with magnetic and viscous effects. Phys Rev E Stat Nonlin Soft Matter Phys. 2015;92(5):051101doi: 10.1103/PhysRevE.92.051101.
Adams, C. S., Moser, A. L., & Hsu, S. C. (2015). Observation of Rayleigh-Taylor-instability evolution in a plasma with magnetic and viscous effects. Physical review. E, Statistical, nonlinear, and soft matter physics, 92(5), 051101. https://doi.org/10.1103/PhysRevE.92.051101
Adams, Colin S, et al. "Observation of Rayleigh-Taylor-instability evolution in a plasma with magnetic and viscous effects." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 92,5 (2015): 051101. doi: https://doi.org/10.1103/PhysRevE.92.051101
Adams CS, Moser AL, Hsu SC. Observation of Rayleigh-Taylor-instability evolution in a plasma with magnetic and viscous effects. Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Nov;92(5):051101. doi: 10.1103/PhysRevE.92.051101. Epub 2015 Nov 06. PMID: 26651638.
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Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Nov;92(5):051101. doi: 10.1103/PhysRevE.92.051101. Epub 2015 Nov 06.

Observation of Rayleigh-Taylor-instability evolution in a plasma with magnetic and viscous effects.

Physical review. E, Statistical, nonlinear, and soft matter physics

Colin S Adams, Auna L Moser, Scott C Hsu

Affiliations

  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  2. University of New Mexico, Albuquerque, New Mexico 87131, USA.

PMID: 26651638 DOI: 10.1103/PhysRevE.92.051101

Abstract

We present time-resolved observations of Rayleigh-Taylor-instability (RTI) evolution at the interface between an unmagnetized plasma jet colliding with a stagnated, magnetized plasma. The observed instability growth time (∼10 μs) is consistent with the estimated linear RTI growth rate calculated using experimentally inferred values of density (∼10(14) cm(-3)) and deceleration (∼10(9) m/s(2)). The observed mode wavelength (≳1 cm) nearly doubles within a linear growth time. Theoretical estimates of magnetic and viscous stabilization and idealized magnetohydrodynamic simulations including a physical viscosity model both suggest that the observed instability evolution is subject to magnetic and/or viscous effects.

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