Abstract
The results of an experimental study of a flow of rarefied gas of density ∼10−5 g/cm3 beyond the cutoff of a hypersonic nozzle (M≃11) by means of an electron beam with energy up to 43 keV are presented. The density and velocity fields at different distances from the nozzle and various receiver pressures were measured using this method and the static and total pressure fields were also measured with the help of a Pitot tube. The flow parameters beyond the nozzle were calculated for two limiting cases: with equilibrium condensation and without condensation. This calculation is compared with the experimental results.
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Literature cited
Daum and Dzhaiarmati, “Condensation of air and nitrogen in hypersonic wind tunnels,” Raketn. Tekh. Kosmonavt.,6, No. 3 (1968).
P. P. Wegener and L. M. Mack, “Condensation in supersonic and hypersonic wind tunnels,” in: Problems in Mechanics [Russian translation], No. 3, Izd. Inostr. Lit., Moscow (1961).
V. I. Ershov, B. E. Zhestkov, and E. V. Trudaev, “Velocity measurement on a rarefied gas flow by means of an ion marker,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 6 (1974).
B. S. Rinkevicius, A. V. Tolkachev, and V. N. Kharchenko, “Measurement of the velocity fields in a hypersonic flow by means of a laser Doppler anemometer,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 4 (1974).
B. W. Schumacher and E. O. Gadamer, “Electron beam fluorescence probe for measuring the local gas density in a wide field of observation,” Canad. J. Phys.,36, No. 6 (1958).
G. A. Bogdanovskii, A. V. Lipin, L. N. Malakhov, and G. V. Semenov, “Measurement of the density distribution and local visualization of a rarified gas flow with an electron beam,” Tr. Tsentr. AÉro-Gidrodinam. Inst., No. 1260 (1971).
V. V. Volchkov and V. M. Kalugin, “Measuring the velocity of rarified gas flows by the displacement of an ion marker produced by an electron beam,” Zh. Prikl. Mekh. Tekh. Fiz., No. 1 (1973).
G. A. Bogdanovskii, A. V. Balakov, A. V. Lipin, and G. V. Semenov, “Measurement of the velocity in a supersonic flow of a rarified gas by the time of flight of ions during pulsed ionization of the gas by an electron beam,” Tr. Tsentr. AÉro-Gidrodinam. Inst., No. 1515 (1973).
M. Ya. Ivanov and A. N. Kraiko, “A throughput calculation technique for two- and three-dimensional supersonic flows. 2,” Zh. Vychisl. Mat. Mat. Fiz.,12, No. 3 (1972).
K. R. Enkenus and E. F. Maier, “Calculations for axisymmetric nozzles operating at high temperatures with air flow,” in: Modern Aerodynamic Research Techniques for Hypersonic Velocities [in Russian], Mashinostroenie, Moscow (1965).
V. E. Popov, “Gas condensation in hypersonic nozzles,” Tr. Tsentr. AÉro-Gidrodinam. Inst., No. 1376 (1971).
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 111–117, January–February, 1976.
The authors thank S. N. Romanenko for help with the electron-beam experiments.
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Vinogradov, V.A., Petrov, M.D. Investigation of flow beyond a supersonic nozzle by an electron-beam technique. Fluid Dyn 11, 95–100 (1976). https://doi.org/10.1007/BF01023401
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DOI: https://doi.org/10.1007/BF01023401