Rayleigh-Taylor mixing in supernova experiments

N. C. Swisher, C. C. Kuranz, W David Arnett, O. Hurricane, B. A. Remington, H. F. Robey, S. I. Abarzhi

Research output: Contribution to journalArticle

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Abstract

We report a scrupulous analysis of data in supernova experiments that are conducted at high power laser facilities in order to study core-collapse supernova SN1987A. Parameters of the experimental system are properly scaled to investigate the interaction of a blast-wave with helium-hydrogen interface, and the induced Rayleigh-Taylor instability and Rayleigh-Taylor mixing of the denser and lighter fluids with time-dependent acceleration. We analyze all available experimental images of the Rayleigh-Taylor flow in supernova experiments and measure delicate features of the interfacial dynamics. A new scaling is identified for calibration of experimental data to enable their accurate analysis and comparisons. By properly accounting for the imprint of the experimental conditions, the data set size and statistics are substantially increased. New theoretical solutions are reported to describe asymptotic dynamics of Rayleigh-Taylor flow with time-dependent acceleration by applying theoretical analysis that considers symmetries and momentum transport. Good qualitative and quantitative agreement is achieved of the experimental data with the theory and simulations. Our study indicates that in supernova experiments Rayleigh-Taylor flow is in the mixing regime, the interface amplitude contributes substantially to the characteristic length scale for energy dissipation; Rayleigh-Taylor mixing keeps order.

Original languageEnglish (US)
Article number102707
JournalPhysics of Plasmas
Volume22
Issue number10
DOIs
StatePublished - Oct 1 2015

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supernovae
Taylor instability
blasts
high power lasers
energy dissipation
helium
statistics
momentum
scaling
fluids
symmetry
hydrogen
simulation
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Swisher, N. C., Kuranz, C. C., Arnett, W. D., Hurricane, O., Remington, B. A., Robey, H. F., & Abarzhi, S. I. (2015). Rayleigh-Taylor mixing in supernova experiments. Physics of Plasmas, 22(10), [102707]. https://doi.org/10.1063/1.4931927

Rayleigh-Taylor mixing in supernova experiments. / Swisher, N. C.; Kuranz, C. C.; Arnett, W David; Hurricane, O.; Remington, B. A.; Robey, H. F.; Abarzhi, S. I.

In: Physics of Plasmas, Vol. 22, No. 10, 102707, 01.10.2015.

Research output: Contribution to journalArticle

Swisher, NC, Kuranz, CC, Arnett, WD, Hurricane, O, Remington, BA, Robey, HF & Abarzhi, SI 2015, 'Rayleigh-Taylor mixing in supernova experiments', Physics of Plasmas, vol. 22, no. 10, 102707. https://doi.org/10.1063/1.4931927
Swisher NC, Kuranz CC, Arnett WD, Hurricane O, Remington BA, Robey HF et al. Rayleigh-Taylor mixing in supernova experiments. Physics of Plasmas. 2015 Oct 1;22(10). 102707. https://doi.org/10.1063/1.4931927
Swisher, N. C. ; Kuranz, C. C. ; Arnett, W David ; Hurricane, O. ; Remington, B. A. ; Robey, H. F. ; Abarzhi, S. I. / Rayleigh-Taylor mixing in supernova experiments. In: Physics of Plasmas. 2015 ; Vol. 22, No. 10.
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