What question did this study set out to answer?

To investigate the propagation dynamics, velocities, and ignition mechanisms of nanosecond pulsed plasmas in liquids.

June 1, 2022Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

Propagation of nanosecond plasmas in liquids—Streamer velocities and streamer lengths

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Authors

EJE. JünglingRuhr University Bochum KGKatharina GrosseRuhr University Bochum AKAchim von KeudellRuhr University Bochum

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Implication

Experimental and modeling study reveals streamer propagation dynamics in liquid plasmas, indicating streamer velocity depends on localized ionization rather than electron advection.

Key Points

To investigate the propagation dynamics, velocities, and ignition mechanisms of nanosecond pulsed plasmas in liquids.
Recorded the time-dependent propagation of negative-voltage liquid streamers using intensified charge-coupled device (ICCD) imaging.
Simulated liquid streamer dynamics and propagation velocity using a 1D fluid model incorporating hydrated electron transport coefficients.
Maximum streamer length scaled directly with the applied electric field, demonstrating that an electric stability field is maintained within the liquid channel.
The 1D fluid code accurately reproduced observed streamer velocities only when transport coefficients for hydrated electrons were applied.
Streamer propagation was shown to be governed by the local ionization rate at the ionization front rather than electron advection or diffusion, explaining the matching electron densities seen in positive and negative streamers.

Cite This Study

Jüngling et al. (2022) studied this question.

synapsesocial.com/papers/69dad3fc7a67537a8ba3c987 https://doi.org/10.1116/6.0001669

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Implication

Experimental and modeling study reveals streamer propagation dynamics in liquid plasmas, indicating streamer velocity depends on localized ionization rather than electron advection.

Propagation of nanosecond plasmas in liquids—Streamer velocities and streamer lengths

Discussion

Member takes

Implication

Key Points

Cite This Study

Propagation of nanosecond plasmas in liquids—Streamer velocities and streamer lengths

Discussion

Member takes

Implication

Key Points

Cite This Study

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