Fluid Dynamics

, Volume 53, Issue 1, pp 1–8 | Cite as

Flows of Supersonic Underexpanded Jets on the Range of Moderate Reynolds Numbers

  • V. M. Aniskin
  • A. A. Maslov
  • S. G. Mironov


The results of an experimental investigation of the gasdynamic structure of supersonic underexpanded air jets flowing out of a sonic nozzle into a low-pressure medium are presented. This setting of the experimentmakes it possible to achieve high values of the nozzle-to-ambient pressure ratio at moderate outflow Reynolds numbers characteristic of underexpanded jets issuing from micronozzles. The data on the supersonic core length, the laminar-turbulent transition location, and the jet flow characteristics are obtained. The results are compared with those obtained in microjets flowing out of sonic nozzles. Emphasis is placed on the earlier discovered effect of inverse transition of a turbulent jet into the laminar flow regime with increase in the Reynolds number.

Key words

supersonic underexpanded jets modeling of microjets experiments 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    F. S. Alvi, C. Shih, R. Elavarasan, G. Garg, and A. Krothapalli, “Control of Supersonic Impinging Jet Flows Using SupersonicMicrojets,” AIAA J. 41, 1347 (2003).ADSCrossRefGoogle Scholar
  2. 2.
    H. Lou, F. S. Alvi, and C. Shih, “Active and Passive Control of Supersonic Impinging Jets,” AIAA J. 44, 58 (2006).ADSCrossRefGoogle Scholar
  3. 3.
    J. J. Chou, A. M. Anmaswamy, H. Lou, and F. S. Alvi, “Active Control of Supersonic Impingement Tones Using Steady and Pulsed Microjets,” Exp. Fluids 41, 841 (2006).CrossRefGoogle Scholar
  4. 4.
    J. W. Tanney, “Fluidics,” Progr. Aeronaut. Sci. 10, 401 (1970).ADSCrossRefGoogle Scholar
  5. 5.
    K. Teshima and M. Sommerfeld, “Visualization and Numerical Simulation of Supersonic Microjets,” Exp. Phys. 5, 197 (1987).Google Scholar
  6. 6.
    S. D. Scroggs and G. S. Settles, “An Experimental Study of Supersonic Microjets,” Exp. Fluids 21, 401 (1996).CrossRefGoogle Scholar
  7. 7.
    K. A. Phalnicar, R. Kumar, and F. S. Alvi, “Experiments on Free and Impinging Microjets,” Exp. Fluids 44, 819 (2008).CrossRefGoogle Scholar
  8. 8.
    T. Yoshimara, Y. Asako, and T. Yamada, “Underexpansion Gaseous Flow at a Straight Micro-Tube Exit,” J. Fluids Eng. 136, 1 (2014).Google Scholar
  9. 9.
    Chie Gau, C. H. Shen, and Z. B. Wang, “Peculiar Phenomenon of Micro-Free-Jet Flow,” Phys. Fluids 21, 092001 (2009).ADSCrossRefzbMATHGoogle Scholar
  10. 10.
    V. M. Aniskin, S. G. Mironov, and A. A. Maslov, “Nozzle Size Effect on the Supersonic Microjet Range,” Pisma Zh. Tekhn. Fiz. 37(22), 10 (2011).Google Scholar
  11. 11.
    V. Aniskin, A. Maslov, and S. Mironov, “The Structure of Supersonic Two-Dimensional and Axisymmetric Microjets,” Int. J. Microscale Nanoscale Therm. Fluid Transport Phen. 3, 49 (2012).Google Scholar
  12. 12.
    V. Aniskin, S. Mironov, and A. Maslov, “Investigation of the Structure of Supersonic Nitrogen Microjets,” Microfluid Nanofluid 14, 605 (2013).CrossRefGoogle Scholar
  13. 13.
    V. M. Aniskin, A. A. Maslov, and S. G. Mironov, “Relaminarization in Supersonic Microjets at Low Reynolds Numbers,” Pisma Zh. Tekhn. Fiz. 39 (16), 47 (2013).Google Scholar
  14. 14.
    V. M. Aniskin, S. G. Mironov, A. A. Maslov, and I. S. Tsyryulnikov, “Supersonic Axisymmetric Microjets: Structure and Laminar-Turbulent Transition,” Microfluid Nanofluid 19, 621 (2015).CrossRefGoogle Scholar
  15. 15.
    V. Ya. Rudyak, V. M. Aniskin, V. V. Kuznetsov, A. A. Maslov, A. V. Minakov, and S. G. Mironov, Modeling of Microflows and Nanoflows (Novosibirsk, 2014) [in Russian].Google Scholar
  16. 16.
    V. M. Aniskin, A. A. Maslov, S. G. Mironov, and I. S. Tsyriul’nikov, “Experimental Investigation of the Structure of Supersonic Plane UnderexpandedMicrojets,” Pisma Zh. Tekhn. Fiz. 41(10), 97 (2015).Google Scholar
  17. 17.
    J. W. Shirie and J. G. Siebold, “Length of Supersonic Core in High-Speed Jets,” AIAA J. 5, 2062 (1967).ADSCrossRefGoogle Scholar
  18. 18.
    V. I. Pogorelov, “Parameters Determining the Long-Range of a SupersonicGas Jet,” Zh. Tekhn. Fiz. 47, 444 (1977).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. M. Aniskin
    • 1
  • A. A. Maslov
    • 1
    • 2
  • S. G. Mironov
    • 1
    • 2
  1. 1.Khristianovich Institute of Theoretical and Applied MechanicsSiberian Branch of Russian Academy of SciencesNovosibirskRussia
  2. 2.Department of PhysicsNovosibirsk State UniversityNovosibirskRussia

Personalised recommendations