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April 11, 2026Physics of PlasmasOpen Access

Modeling the ignition of high-current high-pressure arc discharge in a cold setup

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Authors

DSD. F. N. SantosMCM. D. CunhaISI. StepanovInstituto Superior de Gestão

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Implication

Modeling process reveals ignition phases of arc discharge in cold setups, indicating crucial plasma behaviors.

Key Points

  • The research aims to model the ignition process of a high-current argon arc discharge in a cold setup.
  • Simulated a 200 A atmospheric-pressure argon arc discharge
  • Considered slow and fast ignition cases under different power supply speeds
  • Used three discharge models: stand-alone cathodic model, LTE approximation, and 2T approximation
  • Described three phases of arc ignition: abnormal glow discharge, an arc with a cathode spot, and an arc with diffuse attachment
  • Achieved plasma temperatures around 10 eV in plasma balls
  • Found similar plasma temperature distributions between LTE and 2T models, even at low currents

Cite This Study

Santos et al. (2026) studied this question.

synapsesocial.com/papers/69d9e52b78050d08c1b7572ehttps://doi.org/10.1063/5.0316801
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