Scaling supernova hydrodynamics to the laboratory

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Supernova (SN) 1987A focused attention on the critical role of hydrodynamic instabilities in the evolution of supernovae. To test the modeling of these instabilities, they are attempting to rigorously scale the physics of the laboratory in supernova. The scaling of hydrodynamics on microscopic laser scales to hydrodynamics on the SN-size scales is presented and requirements established. Initial results were reported in [1]. Next the appropriate conditions are generated on the NOVA laser. 10-15 Mbar shock at the interface of a two-layer planar target, which triggers perturbation growth, due to the Richtmyer-Meshkov instability and to the Rayleigh-Taylor instability as the interface ... continued below

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Kane, J O; Remington, B A; Arnett, D; Fryxell, B A & Drake, R P November 10, 1998.

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Supernova (SN) 1987A focused attention on the critical role of hydrodynamic instabilities in the evolution of supernovae. To test the modeling of these instabilities, they are attempting to rigorously scale the physics of the laboratory in supernova. The scaling of hydrodynamics on microscopic laser scales to hydrodynamics on the SN-size scales is presented and requirements established. Initial results were reported in [1]. Next the appropriate conditions are generated on the NOVA laser. 10-15 Mbar shock at the interface of a two-layer planar target, which triggers perturbation growth, due to the Richtmyer-Meshkov instability and to the Rayleigh-Taylor instability as the interface decelerates is generated. This scales the hydrodynamics of the He-H interface of a Type II supernova at intermediate times, up to a few x10{sup 3} s. The experiment is modeled using the hydrodynamics codes HYADES and CALE, and the supernova code PROMETHEUS. Results of the experiments and simulations are presented. Analysis of the spike bubble velocities using potential flow theory and Ott thin shell theory is presented, as well as a study of 2D vs. 3D difference in growth at the He-H interface of Sn 1987A.

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1.4 Megabytes pages

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  • American Physical Society 40th Annual Meeting of the Division of Plasma Physics, New Orleans, LA (US), 11/16/1998--11/20/1998

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  • Report No.: UCRL-JC-132438
  • Report No.: DP0210000
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14944
  • Archival Resource Key: ark:/67531/metadc627376

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  • November 10, 1998

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 1:58 p.m.

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Kane, J O; Remington, B A; Arnett, D; Fryxell, B A & Drake, R P. Scaling supernova hydrodynamics to the laboratory, article, November 10, 1998; California. (digital.library.unt.edu/ark:/67531/metadc627376/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.