Thermodynamic and transport properties of two-temperature SF{sub 6} plasmas

Journal Article · Wed Aug 15 00:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4739778· OSTI ID:22086085

Weizong, Wang ^[1]; Mingzhe, Rong; Yi, Wu ^[1]; Spencer, Joseph W; Yan, Joseph D; Mei, DanHua ^[2]

---

1. State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an Shaanxi 710049 (China)
2. Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ (United Kingdom)

This paper deals with thermodynamic and transport properties of SF{sub 6} plasmas in a two-temperature model for both thermal equilibrium and non-equilibrium conditions. The species composition and thermodynamic properties are numerically determined using the two-temperature Saha equation and Guldberg-Waage equation according to deviation of van de Sanden et al. Transport properties including diffusion coefficient, viscosity, thermal conductivity, and electrical conductivity are calculated with most recent collision interaction potentials by adopting Devoto's electron and heavy particle decoupling approach but expanded to the third-order approximation (second-order for viscosity) in the frame of Chapman-Enskog method. The results are computed for various values of pressures from 0.1 atm to 10 atm and ratios of the electron temperature to the heavy particle temperature from 1 to 20 with electron temperature range from 300 to 40 000 K. In the local thermodynamic equilibrium regime, results are compared with available results of previously published studies.

• OSTI ID: 22086085
• Journal Information: Physics of Plasmas, Vol. 19, Issue 8; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
COLLISIONS
DECOUPLING
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRON TEMPERATURE
INTERACTIONS
PARTICLES
PLASMA
SAHA EQUATION
SULFUR FLUORIDES
THERMAL CONDUCTIVITY
THERMAL EQUILIBRIUM
THERMODYNAMICS
VISCOSITY