Schlieren imaging of shock-wave formation induced by ultrafast heating of a nanosecond repetitively pulsed discharge in air

Da A. Xu; Deanna A. Lacoste; Christophe O. Laux

doi:10.1109/TPS.2014.2311328

Schlieren imaging of shock-wave formation induced by ultrafast heating of a nanosecond repetitively pulsed discharge in air

Da A. Xu^*, Deanna A. Lacoste, Christophe O. Laux

^*Corresponding author for this work

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

19 Scopus citations

Abstract

We present schlieren images of the hydrodynamic expansion following a nanosecond repetitively pulsed discharge in atmospheric pressure air at room temperature. The discharge is created by voltage pulses of amplitude 7.5 kV, duration 10 ns, applied at a frequency of 1 kHz between two pin electrodes. The electrical energy of each pulse is of the order of 1 mJ. We recorded phase-locked schlieren images starting from a few nanoseconds after the discharge. The time-resolved images show the expansion of the heated gas channel from 50 ns and the shock-wave propagation starting at 0.5 μs.

Original language	English (US)
Article number	6777296
Pages (from-to)	2350-2351
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	42
Issue number	10
DOIs	https://doi.org/10.1109/TPS.2014.2311328
State	Published - Oct 1 2014

Keywords

Nanosecond discharges
ultrafast heating

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1109/TPS.2014.2311328

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title = "Schlieren imaging of shock-wave formation induced by ultrafast heating of a nanosecond repetitively pulsed discharge in air",

abstract = "We present schlieren images of the hydrodynamic expansion following a nanosecond repetitively pulsed discharge in atmospheric pressure air at room temperature. The discharge is created by voltage pulses of amplitude 7.5 kV, duration 10 ns, applied at a frequency of 1 kHz between two pin electrodes. The electrical energy of each pulse is of the order of 1 mJ. We recorded phase-locked schlieren images starting from a few nanoseconds after the discharge. The time-resolved images show the expansion of the heated gas channel from 50 ns and the shock-wave propagation starting at 0.5 μs.",

keywords = "Nanosecond discharges, ultrafast heating",

author = "Xu, {Da A.} and Lacoste, {Deanna A.} and Laux, {Christophe O.}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.",

year = "2014",

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doi = "10.1109/TPS.2014.2311328",

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T1 - Schlieren imaging of shock-wave formation induced by ultrafast heating of a nanosecond repetitively pulsed discharge in air

AU - Xu, Da A.

AU - Lacoste, Deanna A.

AU - Laux, Christophe O.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - We present schlieren images of the hydrodynamic expansion following a nanosecond repetitively pulsed discharge in atmospheric pressure air at room temperature. The discharge is created by voltage pulses of amplitude 7.5 kV, duration 10 ns, applied at a frequency of 1 kHz between two pin electrodes. The electrical energy of each pulse is of the order of 1 mJ. We recorded phase-locked schlieren images starting from a few nanoseconds after the discharge. The time-resolved images show the expansion of the heated gas channel from 50 ns and the shock-wave propagation starting at 0.5 μs.

AB - We present schlieren images of the hydrodynamic expansion following a nanosecond repetitively pulsed discharge in atmospheric pressure air at room temperature. The discharge is created by voltage pulses of amplitude 7.5 kV, duration 10 ns, applied at a frequency of 1 kHz between two pin electrodes. The electrical energy of each pulse is of the order of 1 mJ. We recorded phase-locked schlieren images starting from a few nanoseconds after the discharge. The time-resolved images show the expansion of the heated gas channel from 50 ns and the shock-wave propagation starting at 0.5 μs.

KW - Nanosecond discharges

KW - ultrafast heating

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U2 - 10.1109/TPS.2014.2311328

DO - 10.1109/TPS.2014.2311328

M3 - Article

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VL - 42

SP - 2350

EP - 2351

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 10

M1 - 6777296

ER -

Schlieren imaging of shock-wave formation induced by ultrafast heating of a nanosecond repetitively pulsed discharge in air

Abstract

Keywords

ASJC Scopus subject areas

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