Abstract
The flow velocity fluctuations in a gas laser are measured under non-self-maintained glow discharge conditions. Spectra of the pulsating velocity signal on the frequency interval up to 2 kHz and the time dependence of the signal under glow and neutral flow conditions for pure nitrogen, a mixture of nitrogen and helium, and a trial CO2-N2-He mixture are obtained. Deformation (due to the action of the discharge) of the spectra of the transverse velocity component in the wake of a right circular cylinder is observed. In order to analyze the data obtained a model of the dynamic response of the pulsating velocity is constructed and a model of the Kármán vortex street behind a body is generalized with allowance for variations of the oscillation phase in the street.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G. A. Garosi, G. Bekefi, and M. Schulz, "Response of a weakly ionized plasma to turbulent gas flow,"Phys. Fluids,13, 2795 (1970).
G. P. Galechyan and S. I. Petrosyan, "Decontraction of a positive column by a high-velocity gas flow,"Zh. Prikl. Mekh. Tekh. Fiz., No. 6, 9 (1975).
A. C. Eckbreth, F. S. Owen, "Flow conditioning in electric discharge convection lasers,"Rev. Sci. Instrum.,43, 995 (1972).
V. P. Polulyakh and V. I. Kiselev, "Glow discharge in a turbulent flow,"Izv. Vuzov. Fizika, No. 5, 125 (1977).
N. A. Generalov, V. P. Zimakov, V. D. Kosynkin et al., "Steady-state non-self-maintained discharge with ionization by electrode-free pulses in a closed-cycle laser,"Fizika Plasmy,3, 626 (1977).
A. V. Bondarenko, V. S. Golubev, E. V. Dan’shchikov et al., "Effect of turbulence on the stability of a self-maintained discharge in an air flow,"Fizika Plasmy,5, 687 (1979).
Yu. S. Akishev, A. N. Kozlov, A. P. Napartovich et al., "Correlation measurements of the characteristics of a glow discharge in a turbulent gas flow,"Fizika Plasmy,8, 736 (1982).
A. V. Nadospasov and V. D. Khait,Oscillations and Instabilities of a Low-Temperature Plasma [in Russian], Nauka, Moscow (1979).
N. L. Aleksandrov, A. P. Napartovich, A. F. Pal’ et al., "Amplification of sonic waves in a gas-discharge plasma,"Fizika Plasmy,16, 862 (1990).
N. A. Generalov, V. P. Zimakov, V. D. Kosynkin et al., "Pre-ionization of a gas by electrode-free capacity pulses in lasers operating in the pulseperiodic regime,"Kvantovaya Elektronika,5, 1157 (1978).
G. V. Gembarzhevskii, N. A. Generalov, and V. D. Kosynkin, "Probe for determining the velocity fluctuations in a turbulent gas flow under glow discharge conditions,"Pribory i Tekhnika Eksperimenta, No. 3, 149 (1993).
M. D. Aksenenko, M. L. Baranochnikov, and O. V. Smolin,Microelectronic Photo-Detection Devices [in Russian], Energoatomizdat, Moscow (1984).
H. W. Forsching,Grundlagen der Aeroelastik, Springer, Berlin, Heidelberg, N. Y. (1974).
S. Timoshenko, D. H. Young, and W. Weaver, Jr.,Vibration Problems in Engineering, Wiley, N. Y. (1974).
N. E. Kochin, I. A. Kibel’, and N. V. Roze,Theoretical Hydromechanics, Vol. 1 [in Russian], Fizmatgiz, Moscow (1963).
S. E. Frish,Optical Atomic Spectra [in Russian], Fizmatgiz, Moscow, Leningrad (1963).
D. J. Hudson,Statistics, Lectures on Elementary Statistics and Probability, Geneva (1964).
Additional information
Moscow. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 2, pp. 81–91, March–April, 2000.
The work was carried out with partial financial support from the Russian Foundation for Basic Research (projects Nos. 96-01-00372 and 99-01-01199).
Rights and permissions
About this article
Cite this article
Gembarzhevskii, G.V., Generalov, N.A. & Solov’ev, N.G. Investigation of the velocity fluctuation spectrum of a vortex flow of vibrationally excited molecular gas in a glow discharge. Fluid Dyn 35, 222–231 (2000). https://doi.org/10.1007/BF02831430
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02831430