Wire explosion in vacuum: Simulation of a striation appearance

Abstract

This paper presents the simulation results of electrical explosion of thin Al wires at a current rise time of several tens of nanoseconds and at a current density of ∼10⁸ A/cm². Studies include the matter phase transfers and magnetohydrodynamic (MHD) model. A two-dimensional MHD model based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process results from the decrease in liquid metal conductivity with increasing temperature and decreasing density.

Original language	English
Pages (from-to)	4771-4776
Number of pages	6
Journal	Physics of Plasmas
Volume	11
Issue number	10
DOIs	https://doi.org/10.1063/1.1789996
Publication status	Published - Oct 2004
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Condensed Matter Physics

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10.1063/1.1789996

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title = "Wire explosion in vacuum: Simulation of a striation appearance",

abstract = "This paper presents the simulation results of electrical explosion of thin Al wires at a current rise time of several tens of nanoseconds and at a current density of ∼108 A/cm2. Studies include the matter phase transfers and magnetohydrodynamic (MHD) model. A two-dimensional MHD model based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process results from the decrease in liquid metal conductivity with increasing temperature and decreasing density.",

author = "Oreshkin, {V. I.} and Baksht, {R. B.} and Ratakhin, {N. A.} and Shishlov, {A. V.} and Khishchenko, {K. V.} and Levashov, {P. R.} and Beilis, {I. I.}",

year = "2004",

month = oct,

doi = "10.1063/1.1789996",

language = "English",

volume = "11",

pages = "4771--4776",

journal = "Physics of Plasmas",

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TY - JOUR

T1 - Wire explosion in vacuum

T2 - Simulation of a striation appearance

AU - Oreshkin, V. I.

AU - Baksht, R. B.

AU - Ratakhin, N. A.

AU - Shishlov, A. V.

AU - Khishchenko, K. V.

AU - Levashov, P. R.

AU - Beilis, I. I.

PY - 2004/10

Y1 - 2004/10

N2 - This paper presents the simulation results of electrical explosion of thin Al wires at a current rise time of several tens of nanoseconds and at a current density of ∼108 A/cm2. Studies include the matter phase transfers and magnetohydrodynamic (MHD) model. A two-dimensional MHD model based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process results from the decrease in liquid metal conductivity with increasing temperature and decreasing density.

AB - This paper presents the simulation results of electrical explosion of thin Al wires at a current rise time of several tens of nanoseconds and at a current density of ∼108 A/cm2. Studies include the matter phase transfers and magnetohydrodynamic (MHD) model. A two-dimensional MHD model based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process results from the decrease in liquid metal conductivity with increasing temperature and decreasing density.

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Wire explosion in vacuum: Simulation of a striation appearance

Abstract

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