Application of similarity laws as a light source diagnostics

Michael, D; Khodorkovskii, M. A.; Pastor, A. A.; Timofeev, N. A.; Zissis, Georges

doi:10.1088/0022-3727/43/23/234005

Cited by 9 publications

(1 citation statement)

References 14 publications

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“…In the case of strongly ionized states, the k scaling will apply but only for the quasineutral region in the discharge, excluding the cathode fall layer with space charge near the electrode, or for cases when the role of cathode fall layer is less important [22]. A typical example for the application of the k scaling is the positive column in a glow discharge, which was confirmed by the external characteristic (total current scaling) by experiment previously [19,22,47,48]. Since the global model is used, the results are not limited to glow discharge regimes but generally apply for low-temperature plasmas.…”

Section: Resultsmentioning

confidence: 84%

Transition of low-temperature plasma similarity laws from low to high ionization degree regimes

Fu¹,

Krek²,

Wen³

et al. 2019

Plasma Sources Sci. Technol.

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Similarity laws are often employed when characteristics of two or more discharge plasma systems are compared. The classical similarity laws were previously validated and applied for weakly ionized plasma discharges. However, the classical similarity laws will not be valid for all plasma regimes. Especially for strongly ionized regimes, scaling laws are not well elaborated. In this study, transition characteristics of low-temperature plasma similarity laws are evaluated from low to high ionization degree regimes. The similarity relations of plasma density and ionization degree are obtained for geometrically similar gaps. The deviations from classical similarity laws are observed, which are gradually enlarged as the ionization increases from low to high degrees. The transition characteristics are affected by the significance of nonlinear reaction processes (such as three-body collisions), resulting in that the classical similarity relations hold up to a higher ionization degree at low pressure than that at high pressure. The time-dependent scaling characteristics of species densities and electron kinetic behaviors in geometrically similar gaps are also examined. The results are beneficial for utilizing the similarity laws in a wide range of ionization degree regimes, which is essential for correlating plasma characteristics in geometrical similar vessels of various scales.

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Section: Resultsmentioning

confidence: 84%

Transition of low-temperature plasma similarity laws from low to high ionization degree regimes

Fu¹,

Krek²,

Wen³

et al. 2019

Plasma Sources Sci. Technol.

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Similarity theory and scaling laws for low-temperature plasma discharges: a comprehensive review

Wang

2023

Rev. Mod. Plasma Phys.

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Freezing of a Liquid Marble

Hashmi

Strauss

2012

Langmuir

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In this study, we present for the first time the observations of a freezing liquid marble. In the experiment, liquid marbles are gently placed on the cold side of a thermo-electric cooler (TEC), and the morphological changes are recorded and characterized thereafter. These liquid marbles are noticed to undergo a shape transition from a spherical to a flying-saucer-shaped morphology. The freezing dynamics of liquid marbles is observed to be very different from that of a freezing water droplet on a superhydrophobic surface. For example, the pointy tip appearing on a frozen water drop could not be observed for a frozen liquid marble. In the end, we highlight a possible explanation of the observed morphology.

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Application of similarity laws as a light source diagnostics

Cited by 9 publications

References 14 publications

Transition of low-temperature plasma similarity laws from low to high ionization degree regimes

Transition of low-temperature plasma similarity laws from low to high ionization degree regimes

Similarity theory and scaling laws for low-temperature plasma discharges: a comprehensive review

Freezing of a Liquid Marble

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