摘要Based on the Chapman--Enskog theory, we calculate the electrical conductivity of non-equilibrium air plasma in the two-temperature model. We consider different degrees of non-equilibrium, which is defined by the ratio of electronic temperature to heavy particles temperature. The method of computing the composition of air plasma is demonstrated. After calculating the electrical conductivity from electron temperature 1000K to 15000K, the present result is compared with Murphy's study [Plasma Chem. Plasma Process 15 (1994) 279] for equilibrium case. All the calculation is completed at atmospheric pressure. The present results may have potential applications in numerical calculation of non-equilibrium air plasma.
Abstract：Based on the Chapman--Enskog theory, we calculate the electrical conductivity of non-equilibrium air plasma in the two-temperature model. We consider different degrees of non-equilibrium, which is defined by the ratio of electronic temperature to heavy particles temperature. The method of computing the composition of air plasma is demonstrated. After calculating the electrical conductivity from electron temperature 1000K to 15000K, the present result is compared with Murphy's study [Plasma Chem. Plasma Process 15 (1994) 279] for equilibrium case. All the calculation is completed at atmospheric pressure. The present results may have potential applications in numerical calculation of non-equilibrium air plasma.
[1] Murphy A B 1994 Plasma Chem. Plasma Process. 15 279 [2] Boulos M I, Fauchais P and Pfender E 1994 Thermal Plasma:Fundamentals and Application (New York: Plenum) vol 1 chap 6 p225 [3] Czemichowski A 1994 Pure Appl. Chem. 66 1301 [4] Mutaf-Yardmci O, Saveliev A V, Fridman A A and Kennedy L A 2000 J. Appl. Phys. 87 1632 [5] Andre P, Abbaoui M, Lefort A and Parizet M J 1996 PlasmaChem. Plasma Process. 16 379 [6] Andre P, Aubreton J, Barinov Yu, Elchinger M F, Fauchais P, FaureG, Kaplan V, Lefort A, Rat V and Shkol'nik S 2002 J. Phys. D:Appl. Phys. 35 1846 [7] Devoto R S 1967 Phys. Fluids 10 2105 [8] Murphy A B 1993 Phys. Rev. E 48 3594 [9] Chapman S and Cowling T G 1970 The Mathematical Theory ofNon-Uniform Gases (Cambridge: Cambridge University Press) chap 3 p 62 [10] Hirschfelder J O, Curtis C F and Bird R B 1954 MoleculeTheory of Gases and Liquids (New York: Wiley) chap 7 p 441 [11] Rat V, Andre P, Aubreton J, Elchinger M F, Fauchais P and Lefort A2001 Phys. Rev. E 64 026409 [12] Rat V, Andre P, Aubreton J, Elchinger M F, Fauchais P and Vacher D2002 J. Phys. D: Appl. Phys. 35 981 [13] Devoto R S 1973 Phys. Fluids 16 616 [14] Itikawa Y 1974 At. Data Nucl. Data Tables 14 1 [15] Itikawa Y 1978 At. Data Nucl. Data Tables 21 69 [16] Murphy A B and Arndell C J 1994 Plasma Chem. Plasma Process. 14 451 [17] Andre P, Brunet L, Bussiere W, Caillard J, Lombard J M and PicardJ P 2004 Eur. Phys. J. Appl. Phys. 25 169 [18] Captelli M, Celiberto R and Gorse C 1996 Plasma Chem. PlasmaProcess. 16 267 [19] Mason E A and Munn R J 1967 Phys. Fluids 10 1827 [20] Fox R L 1958 Phys. Fluids 15 6
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