Numerical simulation of equilibrium air plasma flow in the induction chamber of a high-power plasmatron

Васильевский, С. А.; Колесников, А. Ф.; Bryzgalov, A. I.; Yakush, S. E.

doi:10.1007/s00161-023-01192-1

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…Since 1980s, scholars have made great efforts in numerical simulation of ADP generators [66]. Mainly from the internal structure of plasma generators [67,68], scholars explored the influence of these factors involving the external magnetic field [69][70][71], working current [72], external airflow [73,74] on the heat transfer and flow characteristics of arc and jet, in order to provide theoretical guidance for the practical application and structural optimization of ADP generators.…”

Section: Numerical Simulation Of Adp Generatorsmentioning

confidence: 99%

Research progress on numerical simulation of arc discharge plasma process

Zhang,

Yuan,

Ding

et al. 2024

Phys. Scr.

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The arc discharge plasma (ADP) technology has been widely developed in the fields of cutting, welding, spraying and nanomaterials synthesis over the past 20 years. However, during the process of ADP, it is difficult to explain the generation and evolution of arc column, the interaction between arc column and electrodes, as well as the effect of plasma generator structure on the physical characteristics of ADP by experimental means. Therefore, numerical simulation has become an effective mean to explore the physical characteristics of ADP, but also faces severe challenges because it involves multiple physical field coupling, resolution of multiscale features as well as robustness in the presence of large gradients. From the point of view of the construction of ADP mathematical physical models and combined with the practical application of ADP, this paper systematically reviews the researches on physical properties of arc column, near-cathode region, near-anode region as well as the today’s state of the numerical simulation of plasma generators. It provides a good reference for further mastering the physical characteristics of plasma, guiding the industrial application of plasma and optimizing the design of plasma generators. Meanwhile, the relevant computational aspects are discussed and the challenges of plasma numerical simulation in the future are summarized.

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Section: Numerical Simulation Of Adp Generatorsmentioning

confidence: 99%

Research progress on numerical simulation of arc discharge plasma process

Zhang,

Yuan,

Ding

et al. 2024

Phys. Scr.

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Thermodynamic behavior of high-power inductively coupled plasma quartz tube wall

Yang,

Li,

Bao

et al. 2024

Case Studies in Thermal Engineering

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Measurement of controlled metastable oxygen atom concentration from nitric oxide AC glow discharge plasma

Fang,

Zhi,

et al. 2024

Laser Phys.

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Tunable diode laser absorption spectroscopy has proven to be highly advantageous in the diagnostics of high enthalpy air plasma due to its exceptional sensitivity, selectivity, rapid response, and adaptability to harsh environments. However, measuring dissociated atoms remains challenging because these atoms are short-lived reactive species that quickly react with surrounding particles or collide to form stable molecules, making it difficult to prepare an atomic gas source capable of generating sustained, concentration-stabilized, and high signal-to-noise absorption spectroscopy. In this study, we have developed a laboratory-based glow discharge plasma static calibration system designed for time-resolved measurements of the number density of specific electronic states of O atoms. Experimental results indicate that a low-pressure glow discharge of NO can generate a substantial number of metastable O atoms at relatively stable concentrations. The concentration of these metastable O atoms within the discharge tube can be controlled by adjusting gas pressure and discharge current. As the gas pressure in the discharge tube increases, the concentration of metastable O atoms rises to a peak value of 3.66 × 109 cm−3 before declining. The system’s stability was assessed using Allan variance analysis, revealing the detection limit of metastable O atom number density is 8.0018 × 106 cm−3 when the average time is 3.2 s. By varying the input gas, the system is also capable of generating significant quantities of stable N and OH radicals. The system’s stability, controllability, and versatility in producing reference gases of known composition make it a reliable tool for diagnosing high enthalpy flow fields.

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Numerical simulation of equilibrium air plasma flow in the induction chamber of a high-power plasmatron

Cited by 3 publications

References 34 publications

Research progress on numerical simulation of arc discharge plasma process

Research progress on numerical simulation of arc discharge plasma process

Thermodynamic behavior of high-power inductively coupled plasma quartz tube wall

Measurement of controlled metastable oxygen atom concentration from nitric oxide AC glow discharge plasma

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