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- W2903330799 abstract "Emerging plasma technologies, such as plasma medicine, rely on the transport of plasma species across gas-liquid interfaces to achieve their function. Recent studies have identified that, while poorly understood at present, electron transport through the interface is an important driver of plasma chemistry in plasma medicine. In order to understand this fundamental transport, so to facilitate understanding and future optimisation of plasma technologies, a modeling framework for electron transport simulations across gas-liquid interfaces has been developed. This modeling framework has been been applied to noble liquids, such as argon and xenon, and the first steps have been made towards application to a biomolecule system involving tetrahydrofuran.This research has extended previous approaches to electron fluid modeling in the gas phase to propose a fluid model for electron transport in gas and liquid media based on four moments of the Boltzmann kinetic equation. The model was benchmarked against kinetic solutions of electron transport to validate the applicability of the model to describe non-local electron transport phenomena in both gas and liquids, given that appropriate and accurate input data is available. To assess the impact of employing steady-state collision and closure input data in electron fluid models, non-equilibrium velocity distribution functions, computed via multi-term solution of the Boltzmann equation for benchmark calculations, were studied.The dependence of the proposed model's input transport data on the background medium density was examined in this research. By examining how electron momentum and energy transfer occurs due to collisions in gas and liquid extremes, an approximation method was proposed to generate input transport data at intermediate densities for which data is required, but not available, for modeling interfacial transport. The proposed approximation was benchmarked against analytic simple liquids and experimental data measured in cryogenic argon and xenon to verify the applicability of the proposed approach.Simulations of electron transport between gas and liquid argon, and vice versa, was performed by applying both the proposed fluid model and input data approximation method. Comparisons of the abilities of modeling methods to resolve realistic non-local transport were studied, and the stark differences between using electron-liquid transport data compared to simply scaling up electron-gas transport data were discussed. Application of this modeling framework to dual-phase simple liquid particle detector apparatus was demonstrated.Finally, application of the developed modeling framework was made to electron transport in tetrahydrofuran. To do so, a complete gas phase electron scattering cross section set was assembled and analysed using available experimental and theoretical data. Modifications of gas phase scattering to a simulated liquid phase were made using available experimental data. Comparison of streamer formation and propagation in both gaseous and simulated liquid tetrahydrofuran was studied to demonstrate applicability of the framework developed in this research to electron transport in biologically relevant soft-condensed matter." @default.
- W2903330799 created "2018-12-11" @default.
- W2903330799 creator A5084783522 @default.
- W2903330799 date "2018-01-01" @default.
- W2903330799 modified "2023-09-27" @default.
- W2903330799 title "Electron transport modeling in gas and liquid media for application in plasma medicine" @default.
- W2903330799 doi "https://doi.org/10.25903/5bf38aee6e2a4" @default.
- W2903330799 hasPublicationYear "2018" @default.
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