Кинетический механизм нагрева разрядной плазмы воздуха, связанный с взаимодействием электронов с тонкой структурой основного состояния атомарного кислорода


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Kinetic mechanism of air discharge plasma heating is connected with electron interaction with fine structure of atomic oxygen ground state

Kinetic mechanism of air discharge plasma heating based on electron interaction wit fine structure levels of atomic oxygen have been considered. The dependences of heating rate kept within (0.2-4)х10-12хneх[O] eV/cm3хs at Tg = 300 3000 K, E/N = 5 140 Td and degree of oxygen dissociationи from zero upto total one were obtained. The efficiency of heating in pulse discharges with limit conditions have been examined. It was shown that efficiency of considered mechanism turns out a negligible one in comparison with other known heating mechanisms.


Том 6, 2008 год



Рассмотрен кинетический механизм нагрева воздушной газоразрядной плазмы, основанный на взаимодействии электронов с уровнями тонкой структуры основного состояния кислорода. Получены зависимости скорости нагрева, укладывающиеся в диапазон (0.2-4)х10-12хneх[O] эВ/см3хс при Tg = 300 3000 K, E/N = 5 140 Тд и степени диссоциации кислорода воздуха от нулевой до полной. Рассмотрена эффективность механизма нагрева в импульсных газовых разрядах с предельными характеристиками. Показано, что эффективность рассмотренного механизма пренебрежима в сравнении другими известными.


Том 6, 2008 год



1. Dalgarno A., Degges T.C. Electron Cooling in the Upper Atmosphere // Planet. Space Sci., 1968, Vol.16, P.125 132.
2. Brace L.H., Hoegy W.R., Mayr H.G., Reber C.A., Victor G.A., Hanson W.B., Hinteregger H.E. // J. Geophys. Res., 1976, Vol.81, P.5421.
3. Carlson H.C., Mantas G.P. An experimental test of the ionospheric electron gas cooling rate by excitation of the fine structure of atomic oxygen // J. Geophys. Res., 1982, Vol.87, P.4515 4524
4. Moffett R.J. Rates of electron cooling in the upper atmosphere // Planet. Space Sci., 1988, Vol.36, №1, P.65 72.
5. Richards P.G., Khazanov G.W. On the thermal electron energy balance in the ionosphere in January 1993 and June 1990 // J. Geophys. Res., 1997, Vol.102, №A4, P.7369 7378.
6. Кринберг И.А. Кинетика электронов в ионосфере и плазмосфере Земли. М: Наука, 1978, С.21.
7. Itikawa Y., Ichimura A. Cross sections for collisions of electrons and photons with atomic oxygen // J. Phys. Chem. Ref. Data, 1990, Vol.19, №3, P.637 651.
8. Niemi K., Schulz von der Gathen V., Döbele H.F. Absol ute calibration of atomic density measurements by laser-induced fluorescence spectroscopy with two-photon excitation // J. Phys. D., 2001, Vol.34, №15, P.2330 2335.
9. Glover S.C.O., Jappsen A. K // Astrophys. J., 2007, 660, accepted for publishing, http://eprintweb.org/S/authors/astro-ph/gl/Glover/2.
10. Krems R.V., Buchachenko A.A. Quantum and semiclassical study of the intramultiplet transitions in collisions of Cl(2P) and O(3P) with He, Ar and Xe // J. Phys. B., 2000, Vol.33, №21, P.4551 4564.
11. Krems R.V., Buchachenko A.A. Ultracold inelastic atomic collisions: Threshold relaxation of O(3P0) by He // Phys. Rev. A, 2001, Vol.64, P.024704 (2 pages).
12. Zygelman B., Dalgarno A., Sharma R.D. Excitationof the 3PJ=0,1,2 fine-structure levels of atomic oxygen in collisioins with oxygen atoms // Phys. Rev. A, 1994, Vol.50, №5, P.3920 3928.
13. Физико химические процессы в газовой динамике // Справочник, под ред. Черного Г.Г. и Лосева С.А. М.: Научный мир, 2007, Т.1.
14. Sharma R., Zygelman B., von Esse F., Dalgarno A. On the relationship between the population of the fine structure levels of the ground electronic state of atomic oxygen and the translational temperature // Geophys. Res. Lett., 1994, Vol.21, №16, P.1731 1734.
15. Bell K.L., Berrington K.A., Thomas M.R.J. Electron impact excitation of the ground state 3P fine structure levels in atomic oxygen // Month. Not. Royal Astronom. Soc., 1998, Vol.293, P.L83 L87.
16. Pavlov A.V., Berrington K.A. Cooling rate of thermal electrons by electron impact excitation of fine structure levels of atomic oxygen // Ann. Geophys., 1999, Vol.17, P.919 924.
17. Khmara D, Kolesnichenko Yu. Rate constants of electron neutral collisions i gas discharge plasma // Proc. IV Workshop (Intern.) on Magneto and Plasma Aerodynamics for Aerospace Applications. Moscow: IVTAN, 2002, P.280 291.
18. Hoegy W.R. New fine structure cooling rate // Geophys. Res. Lett., 1976, Vol.3, P.541 544.
19. Breig E.L., Lin C.C. Excitation of the Spin Multiplets of the Ground State of Oxygen by Slow Electrons // Phys. Rev., 1966, Vol.151, №1, P.67 79.
20. Tambe B.R., Henry R.J.W. Excitation of the fine structure levels of atomic oxygen by slow electrons // Phys. Rev. A, 1974, Vol.10, №6, P.2087 2092.
21. Le Dourneuf M., Nesbet R.K. // Electron impact excitation of fine structure levels of atomic oxygen, J. Phys. B, 1976, Vol.9. №9, P.L241 L243.
22. Berrington K.A. // Low energy electron excitation of the 3P fine structure levels in atomic oxygen, J. Phys. B, 1988, Vol.21, P.1083 1089.
23. Khmara D.V., Kolesnichenko Yu.F. Kinetic modeling of MW interaction with decaying laser spark // Proc. VI Intern. Workshop on Microwave Discharges: Fundamentals and Applications, Zvenigorod, ISTC, 2006, P.39 44.
24. Kolesnichenko Yu.F., Brovkin V.G., Khmara D.V. Optimization of Laser-Pulse-Controlled MW Energy Deposition // Proc. 45th Aerospace Sciences Meeting and Exhibit. Reno, Nevada: AIAA, 2007. Paper AIAA 2007 1228, (32 pages).
25. Khmara D.V., Kolesnichenko Yu.F., Knight D. A Kinetic Model of Microwave Energy Deposition in Air // Proc. Workshop (Intern.) on Thermochemical and Plasma Processes in Aerodynamics. St. Petersburg: HC “LENINETZ”, 2006, P.37.
26. Popov N.A. Investigation of the fast air heating mechanisms in gas discharges // Proc. IV Intern. Workshop on Magneto-Plasma Aerodynamics in Aerospace Applications, Moscow: IVTAN, 2002, P.254 260
27. Khmara D., Kolesnichenko Yu., Knight D. Modeling of Microwave Filament Origination // Proc. 45th Aerospace Sciences Meeting and Exhibit., Reno, Nevada: AIAA, 2006, Paper AIAA 2006 0794 (16 pages).