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Title: Self-consistent fluid modeling and simulation on a pulsed microwave atmospheric-pressure argon plasma jet

In present study, a pulsed lower-power microwave-driven atmospheric-pressure argon plasma jet has been introduced with the type of coaxial transmission line resonator. The plasma jet plume is with room air temperature, even can be directly touched by human body without any hot harm. In order to study ionization process of the proposed plasma jet, a self-consistent hybrid fluid model is constructed in which Maxwell's equations are solved numerically by finite-difference time-domain method and a fluid model is used to study the characteristics of argon plasma evolution. With a Guass type input power function, the spatio-temporal distributions of the electron density, the electron temperature, the electric field, and the absorbed power density have been simulated, respectively. The simulation results suggest that the peak values of the electron temperature and the electric field are synchronous with the input pulsed microwave power but the maximum quantities of the electron density and the absorbed power density are lagged to the microwave power excitation. In addition, the pulsed plasma jet excited by the local enhanced electric field of surface plasmon polaritons should be the discharge mechanism of the proposed plasma jet.
Authors:
 [1] ;  [2] ; ; ; ; ;  [3] ; ;  [4] ;  [1]
  1. Faculty of Physics, St. Petersburg State University, St. Petersburg 198504 (Russian Federation)
  2. (China)
  3. College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001 (China)
  4. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)
Publication Date:
OSTI Identifier:
22305812
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ARGON; ATMOSPHERIC PRESSURE; DISTRIBUTION; ELECTRIC FIELDS; ELECTRON DENSITY; ELECTRON TEMPERATURE; EVOLUTION; EXCITATION; MAXWELL EQUATIONS; MICROWAVE RADIATION; PLASMA JETS; PLUMES; POLARONS; POWER DENSITY; PULSES; RESONATORS; SIMULATION; SURFACES