A design of a two-dimensional, supersonic KH experiment on OMEGA-EP

G. Malamud; A. Shimony; W. C. Wan; C. A. Di Stefano; Y. Elbaz; C. C. Kuranz; P. A. Keiter; R. P. Drake; D. Shvarts

doi:10.1016/j.hedp.2013.06.002

A design of a two-dimensional, supersonic KH experiment on OMEGA-EP

G. Malamud, A. Shimony, W. C. Wan, C. A. Di Stefano, Y. Elbaz, C. C. Kuranz, P. A. Keiter, R. P. Drake, D. Shvarts

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

An experiment meant to investigate the evolution of single mode Kelvin-Helmholtz (KH) instability in the supersonic regime is presented and theoretically analyzed. This experiment is intended to provide a direct measurement of the two-dimensional vortex evolution so that the high-Mach-number effects can be measured. The proposed design takes advantage of the ability of OMEGA-EP to drive experiments for up to 30ns to produce steady conditions for KH that endure long enough to observe substantial growth. KH growth for the proposed design has been analyzed using two-dimensional numerical simulations. The results were compared to synthetic temporal KH numerical simulations using non-dimensional scaling in the low and high Mach number regime. The comparisons show that the growth in the high Mach number regime is expected to be suppressed by up to a factor of two. The effects of two-dimensional rarefactions from the lateral boundaries of the experimental system were also investigated. It was found that they introduce no major uncertainties or hazards to the experiment. We produced simulated radiographs, which show that the proposed experimental system will enable observation of the KH structures. An experiment of this kind has not yet been performed, and therefore would serve to validate numerical results and analytical models presented here and in the literature.

Original language	English
Pages (from-to)	672-686
Number of pages	15
Journal	High Energy Density Physics
Volume	9
Issue number	4
DOIs	https://doi.org/10.1016/j.hedp.2013.06.002
State	Published - 1 Dec 2013

Keywords

HEDP laboratory experiments
Hydrodynamic instability
Kelvin-Helmholtz
Shock wave

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics

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10.1016/j.hedp.2013.06.002

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title = "A design of a two-dimensional, supersonic KH experiment on OMEGA-EP",

abstract = "An experiment meant to investigate the evolution of single mode Kelvin-Helmholtz (KH) instability in the supersonic regime is presented and theoretically analyzed. This experiment is intended to provide a direct measurement of the two-dimensional vortex evolution so that the high-Mach-number effects can be measured. The proposed design takes advantage of the ability of OMEGA-EP to drive experiments for up to 30ns to produce steady conditions for KH that endure long enough to observe substantial growth. KH growth for the proposed design has been analyzed using two-dimensional numerical simulations. The results were compared to synthetic temporal KH numerical simulations using non-dimensional scaling in the low and high Mach number regime. The comparisons show that the growth in the high Mach number regime is expected to be suppressed by up to a factor of two. The effects of two-dimensional rarefactions from the lateral boundaries of the experimental system were also investigated. It was found that they introduce no major uncertainties or hazards to the experiment. We produced simulated radiographs, which show that the proposed experimental system will enable observation of the KH structures. An experiment of this kind has not yet been performed, and therefore would serve to validate numerical results and analytical models presented here and in the literature.",

keywords = "HEDP laboratory experiments, Hydrodynamic instability, Kelvin-Helmholtz, Shock wave",

author = "G. Malamud and A. Shimony and Wan, {W. C.} and {Di Stefano}, {C. A.} and Y. Elbaz and Kuranz, {C. C.} and Keiter, {P. A.} and Drake, {R. P.} and D. Shvarts",

note = "Funding Information: This work is funded by the NNSA-DS and SC-OFES Joint Program in High-Energy-Density Laboratory Plasmas , grant number DE-FG52-09NA29548 , the National Laser User Facility Program , grant number DE-NA0000850 , and the Predictive Sciences Academic Alliances Program in NNSA-ASC via grant DEFC52-08NA28616 . The authors wish to thank E. Harding, O. A. Hurricane and C. M. Huntington for their help and for many helpful and fruitful discussions. ",

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doi = "10.1016/j.hedp.2013.06.002",

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journal = "High Energy Density Physics",

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T1 - A design of a two-dimensional, supersonic KH experiment on OMEGA-EP

AU - Malamud, G.

AU - Shimony, A.

AU - Wan, W. C.

AU - Di Stefano, C. A.

AU - Elbaz, Y.

AU - Kuranz, C. C.

AU - Keiter, P. A.

AU - Drake, R. P.

AU - Shvarts, D.

N1 - Funding Information: This work is funded by the NNSA-DS and SC-OFES Joint Program in High-Energy-Density Laboratory Plasmas , grant number DE-FG52-09NA29548 , the National Laser User Facility Program , grant number DE-NA0000850 , and the Predictive Sciences Academic Alliances Program in NNSA-ASC via grant DEFC52-08NA28616 . The authors wish to thank E. Harding, O. A. Hurricane and C. M. Huntington for their help and for many helpful and fruitful discussions.

PY - 2013/12/1

Y1 - 2013/12/1

N2 - An experiment meant to investigate the evolution of single mode Kelvin-Helmholtz (KH) instability in the supersonic regime is presented and theoretically analyzed. This experiment is intended to provide a direct measurement of the two-dimensional vortex evolution so that the high-Mach-number effects can be measured. The proposed design takes advantage of the ability of OMEGA-EP to drive experiments for up to 30ns to produce steady conditions for KH that endure long enough to observe substantial growth. KH growth for the proposed design has been analyzed using two-dimensional numerical simulations. The results were compared to synthetic temporal KH numerical simulations using non-dimensional scaling in the low and high Mach number regime. The comparisons show that the growth in the high Mach number regime is expected to be suppressed by up to a factor of two. The effects of two-dimensional rarefactions from the lateral boundaries of the experimental system were also investigated. It was found that they introduce no major uncertainties or hazards to the experiment. We produced simulated radiographs, which show that the proposed experimental system will enable observation of the KH structures. An experiment of this kind has not yet been performed, and therefore would serve to validate numerical results and analytical models presented here and in the literature.

AB - An experiment meant to investigate the evolution of single mode Kelvin-Helmholtz (KH) instability in the supersonic regime is presented and theoretically analyzed. This experiment is intended to provide a direct measurement of the two-dimensional vortex evolution so that the high-Mach-number effects can be measured. The proposed design takes advantage of the ability of OMEGA-EP to drive experiments for up to 30ns to produce steady conditions for KH that endure long enough to observe substantial growth. KH growth for the proposed design has been analyzed using two-dimensional numerical simulations. The results were compared to synthetic temporal KH numerical simulations using non-dimensional scaling in the low and high Mach number regime. The comparisons show that the growth in the high Mach number regime is expected to be suppressed by up to a factor of two. The effects of two-dimensional rarefactions from the lateral boundaries of the experimental system were also investigated. It was found that they introduce no major uncertainties or hazards to the experiment. We produced simulated radiographs, which show that the proposed experimental system will enable observation of the KH structures. An experiment of this kind has not yet been performed, and therefore would serve to validate numerical results and analytical models presented here and in the literature.

KW - HEDP laboratory experiments

KW - Hydrodynamic instability

KW - Kelvin-Helmholtz

KW - Shock wave

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JO - High Energy Density Physics

JF - High Energy Density Physics

IS - 4

ER -

A design of a two-dimensional, supersonic KH experiment on OMEGA-EP

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Keywords

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