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TsAGI Science Journal

ISSN 印刷: 1948-2590
ISSN オンライン: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v41.i2.80
pages 187-205

INVESTIGATION OF SUPERSONIC NONISOBARIC JET STRUCTURE

V. M. Boyko
Khristianovich Institute of Theoretical and Applied Mechanics, Institutskaya str. 4/1, 630090, Novosibirsk
A. V. Dostovalov
Khristianovich Institute of Theoretical and Applied Mechanics, Institutskaya str. 4/1, 630090, Novosibirsk
Valeriy Ivanovich Zapryagaev
Khristianovich Institute of Theoretical and Applied Mechanics (ITAM), Siberian Branch of the Russian Academy of Sciences, 4/1 Institutskaya str, Novosibirsk, 630090, Russia
Ivan Nikolayevich Kavun
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences, 4/1 Institutskaya Str., Novosibirsk, 630090, Russian Federation
Nikolay Petrovich Kiselev
Khristianovich Institute of Theoretical and Applied Mechanics (ITAM), Siberian Branch of the Russian Academy of Sciences, 4/1 Institutskaya str, Novosibirsk, 630090, Russia
A. A. Pivovarov
Khristianovich Institute of Theoretical and Applied Mechanics, Institutskaya str. 4/1, 630090, Novosibirsk

要約

The structure of supersonic nonisobaric jets is studied with Pitot probe methods, particle image velocimetry (PIV) diagnostics, the Schlieren method of flow visualization, and numerical methods. Experimental equipment is described. The flow speed is measured in a subsonic jet with Mach number Ma = 0.9 by PIV method and in a supersonic underexpanded jet with Ma = 1.0. Presented are the results of investigation of the 3-D structure of the supersonic underexpanded jet with the presence of streamwise vortices generated by vortex generators as chevrons situated on the nozzle exit section. The numerical investigation of the initial section of the supersonic underexpanded jet exhausting from a convergent axisymmetric nozzle and a nozzle with chevrons is performed using the commercial program package Fluent.

参考

  1. Sayed, N., Mikkelsen, K., and Bridges, J., Acoustics and thrust of quiet separate-flow high- bypass-ratio nozzles.

  2. Alkislar, M. B., Krothapalli, A., Choutapalli, I., and Lourenco, L., Structure of supersonic twin jets.

  3. Kompenhans, J., Arnott, A., Agos, A., et al., Application of PIV for the investigation of high speed flow fields.

  4. Deich, M. E., Technical Gasodynamics.

  5. Zapryagaev, V I. and Solotchin, A. V., 3D percularity of the flow structure in a supersonic underexpanded jet.

  6. Petunin, A. N., Methods and Technique of Measurements of Gas Flow Parameters.

  7. Zapryagaev, V I., Kiselev, N. P., and Solotchin, A. V., Investigation of supersonic jet structure at the variation of the nozzle entering part.

  8. Abramovich, G. N., Theory of Turbulent Jets.

  9. Zapryagaev, V. I., Kiselev, N. P., and Pavlov, A. A., Influence of streamlines curvature on.

  10. Zapryagaev, V. I., Kavun, I. N., and Kiselev, N. P., Flow structure in the initial part of a supersonic jet exhausting from the chevron nozzle.


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