What question did this study set out to answer?

To directly evaluate the accuracy and operational boundaries of classical fluid models by comparing simulated ionization-wave discharges against experimental electric-field-induced second-harmonic measurements.

June 1, 2021Plasma Sources Science and Technology

Simulation of ionization-wave discharges: a direct comparison between the fluid model and E-FISH measurements

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Authors

YZYifei ZhuSouth China Normal University XCXiancong ChenSun Yat-sen University YWYun WuAir Force Engineering University

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Implication

Numerical simulation study demonstrates close agreement between fluid models and E-FISH electric field measurements in gas discharges, confirming the accuracy of classical plasma modeling.

Key Points

To directly evaluate the accuracy and operational boundaries of classical fluid models by comparing simulated ionization-wave discharges against experimental electric-field-induced second-harmonic measurements.
Simulated diffusive and fast ionization wave discharges across inception, propagation, and channel breakdown stages using a classical fluid model with drift-diffusion and local field/energy approximations.
Generalized a three-term Helmholtz photoionization model across N2, O2, CO2, and air, examining variations in electrode geometry and initial electron densities.
Compared simulated electric field spatio-temporal evolution against published experimental E-FISH datasets collected during discharge progression and gap closure.
Established defined pressure-reduced electric field (E/N) boundaries for drift-diffusion models and pressure-grid thresholds for local field/mean energy approximations.
Observed good qualitative and quantitative agreement between calculated electric field dynamics and E-FISH experimental observations within the validated fluid model domain.

Cite This Study

Zhu et al. (2021) studied this question.

synapsesocial.com/papers/6a013770da5c1eb07f2dd147 https://doi.org/10.1088/1361-6595/ac0714

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Implication

Numerical simulation study demonstrates close agreement between fluid models and E-FISH electric field measurements in gas discharges, confirming the accuracy of classical plasma modeling.

Simulation of ionization-wave discharges: a direct comparison between the fluid model and E-FISH measurements

Discussion

Member takes

Implication

Key Points

Cite This Study

Simulation of ionization-wave discharges: a direct comparison between the fluid model and E-FISH measurements

Discussion

Member takes

Implication

Key Points

Cite This Study

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