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Nonuniqueness of two-temperature Guldberg-Waage and Saha equations: Influence on thermophysical properties of SF6 plasmas
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10.1063/1.4829035
/content/aip/journal/pop/20/11/10.1063/1.4829035
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/11/10.1063/1.4829035
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Comparison of equilibrium number densities and molar fraction in SF plasmas from different Saha and Guldberg-Waage equations under non-equilibrium degrees of  = 1,  = 2,  = 5 at atmospheric pressure, dashed line and symbols: results obtained by method of van de Sanden ; solid line and symbols: results obtained by Potapov's method. (a) Electrons number density; (b) fluorine atom number density; (c) fluorine ion number density; (d)electrons molar fraction.

Image of FIG. 2.
FIG. 2.

Comparison of partial specific heat at constant pressure in SF plasmas from different Saha and Guldberg-Waage equations under non-equilibrium degrees of  = 2,  = 5 at atmospheric pressure, dashed line and symbols: results obtained by method of van de Sanden ; Solid line and symbols: results obtained by Potapov's method. (a) CPTE and (b) CPTH.

Image of FIG. 3.
FIG. 3.

Comparison of transport coefficients in SF plasmas from different Saha and Guldberg-Waage equations under non-equilibrium degrees of  = 2,  = 5 at atmospheric pressure, dashed line and symbols: results obtained by method of van de Sanden ; solid line and symbols: results obtained by Potapov's method. (a) Electron thermal diffusion coefficients; (b) viscosity; (c) electrical conductivity; (d) thermal conductivity; (e) volumetric collision frequency.

Image of FIG. 4.
FIG. 4.

Comparison of properties in SF plasmas from different reaction excitation temperature for molecular ionization under the non-equilibrium degree of 4 at atmospheric pressure. (a) Electron number density; (b) atomic fluoride number density; (c) total specific heat at constant pressure; (d) viscosity; (e) electrical conductivity; (f) thermal conductivity; (g) volumetric collision frequency. Case 1: Potapov's method with molecular ionization excitation temperature ; case 2: Potapov's method with molecular ionization excitation temperature ; case 3: method of van de Sanden with molecular ionization excitation temperature ; case 4: method of van de Sanden with molecular ionization excitation temperature  = .

Image of FIG. 5.
FIG. 5.

Influence of ions screening in the Debye length on properties in SF plasmas under the non-equilibrium degree of 2.5 at atmospheric pressure. (a) Electrical conductivity; (b) thermal conductivity. Case 1: method of van de Sanden with molecular ionization excitation temperature and without ions shielding; case 2: method of van de Sanden with molecular ionization excitation temperature and with ions shielding; case 3: method of van de Sanden with molecular ionization excitation temperature and without ions shielding; case 4: method of van de Sanden with molecular ionization excitation temperature  =  and with ions shielding.

Image of FIG. 6.
FIG. 6.

Influence of pressure on properties in SF plasmas under the non-equilibrium degree of 2.5 at different pressures 0.10 atm, 1.00 atm, and 10.0 atm with molecular ionization excitation temperature , dashed line and symbols: results obtained by method of van de Sanden ; solid line and symbols: results obtained by Potapov's method. (a) Electrons number density; (b) total specific heat at constant pressure; (c) viscosity; (d) electron thermal diffusion coefficient; (e) thermal conductivity; (f) electrical conductivity.

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/content/aip/journal/pop/20/11/10.1063/1.4829035
2013-11-07
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonuniqueness of two-temperature Guldberg-Waage and Saha equations: Influence on thermophysical properties of SF6 plasmas
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/11/10.1063/1.4829035
10.1063/1.4829035
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