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Study of the breakup of liquid droplets in the vortex wake behind pylon at high airspeeds

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Thermophysics and Aeromechanics Aims and scope

Abstract

The study is devoted to the establishment of regularities in the process of liquid-droplet breakup in the vortex wake behind pylon at high subsonic airspeeds. The article describes the laboratory setup, the diagnostic tools, and the experimental procedure. Structure of the unsteady gas flow behind pylon was examined, and the main characteristics of the generated vortex wake were evaluated. Experimental data concerning the variation of droplet diameters in the gas-dynamic fractionation process versus the flow conditions and liquid injection regimes were obtained. Typical distribu-tions of droplet diameters and velocities in the vortex wake behind pylon are reported. A comparison of experimental data on the rate of the gas-dynamic fractionation process with calculations made using previously developed evaluation procedures was performed. The results of the study may prove useful when choosing the configuration of systems for implementation of liquid injection into a high-speed flow and, also, for validation of mathematical models intended for calculation of parameters of two-phase flows.

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References

  1. V.M. Boiko and S.V. Poplavskii, Experimental study of two types of stripping breakup of the drop in the flow behind a shock wave, Combustion, Explosion, and Shock Waves, 2012, Vol. 48., No. 4, P. 440–445.

    Article  Google Scholar 

  2. B.E. Gelfand, Droplet breakup phenomena in flows with velocity lag, Progr. Energy Combust. Sci., 1996, Vol. 22, No. 3. P. 201–265.

    Article  MathSciNet  Google Scholar 

  3. B.E. Gelfand, B. Vieilli, I. Gekalp and C. Chauveau, Shock-free breakup of droplets. Temporal characteristics, J. Appl. Mech. Tech. Phys., 2001, Vol. 42, No. 1, P. 63–66.

    Article  ADS  Google Scholar 

  4. V.P. Loparev, Experimental investigation of the atomization of droplets of liquid under conditions of a gradual rise in external forces, Fluid Dynamics, 1975, Vol. 10, No. 3, P. 518–521.

    Article  ADS  Google Scholar 

  5. A.H. Lefebvre, Gas Turbine Combustion, Hemisphere Pub. Corp., 1983.

    Google Scholar 

  6. M.V. Dobrovolskii, Liquid-Fuel Rocket Engines, D.A. Yagodnikov (Ed.), 2nd edition revised and supplemented, Bauman Moscow State Technical University, Moscow, 2005.

  7. K.Yu. Arefyev and A.V. Voronetskii, Modeling of the process of fractionation and vaporization of non-reacting liquid droplets in high-enthalpy gas flows, Thermophysics and Aeromechanics, 2015, Vol. 22, No. 5, P. 585–596.

    Article  ADS  Google Scholar 

  8. K.Yu. Arefyev, A.V. Voronetskii, A.N. Prokhorov, S.A. Suchkov, and A.L. Filimonov, Analysis of the effect due to the type of injectors and the direction of liquid injection on the effectiveness of two-phase mixture for-mation process in a channel of constant cross-section, Izv. Vysshikh Uchebnykh Zavedenii, ser. Mashinostroenie, 2016, No. 7, P. 94–104.

    Google Scholar 

  9. A.V. Voronetskii, S.A. Suchkov, and L.A. Filimonov, Specific features of high-temperature two-phase flow of combustion products in channels with an intentionally structured system of shock-waves, Thermophysics and Aer-omechanics, 2007, Vol. 14, No. 2, P. 201–210.

    Article  ADS  Google Scholar 

  10. M. Kucharik and M. Shashkov, Conservative multi-material remap for staggered multi-material arbitrary Lagrangian-Eulerian methods, J. Comput. Phys., 2014, Vol. 258, P. 258–268.

    Article  ADS  MathSciNet  MATH  Google Scholar 

  11. T.G. Theofanous and C.H. Chang, On the computation of multiphase interactions in transonic and supersonic flows, in: Proc. AIAA-2008 Conference, Reno, NV, AIAA Paper, 2008, No. 1233.

  12. T.G. Theofanous and G.J. Li, On the physics of aerobreakup, Phys. Fluids, 2008, Vol. 20, P. 20–052103-052103-14.

    Article  MATH  Google Scholar 

  13. O.G. Engel, Fragmentation of water drops in the zone behind an air shock, J. Res. Natl. Bur. Stand., 1958, No. 60, P. 245–280.

    Article  MATH  Google Scholar 

  14. O.V. Dunai, M.V. Eronin, D.V. Kratirov, N.I. Mikheev, and V.M. Molochnikov, Von Karman vortices behind a bluff body in a wall-bounded turbulized flow with a turbulized boundary layer, Fluid Dynamics, 2010, No. 4, P. 599–606.

    Article  ADS  Google Scholar 

  15. M. Raffel, C.E. Willert, S. Wereley, and J. Kompenhans, Particle Image Velocimetry, Springer-Verlag, Berlin, Heidelberg, 2007.

    Google Scholar 

  16. R. Ragucci, A. Cavaliere, and P. Massoli, Drop sizing by laser light scattering exploiting intensity angular oscillation in the Mie regime, Particle & Particle Systems Characterization, 1990, No. 7, P. 221–225.

    Article  Google Scholar 

  17. LaVision Particle Master Shadow Imaging, Product Manual (www.lavision.de).

  18. K.Yu. Arefiev and A.S. Saveliev, Measurement of the spray characteristics of water in co-current subsonic airflow with the shadow and interference methods, Abstracts of the 6th All-Russia Sci. Conference with Participation of Foreign Specialists dedicated to I.F. Obraztsov and Yu.G. Yanovskii “Mechanics of Composite Materials and Structures, and Complex and Heterogeneous Media”, November 16-18, 2016, Moscow, P.93.

  19. G.N. Abramovich, Applied Gas Dynamics, Wright-Patterson Air Force Base, OH, 1973.

    Google Scholar 

  20. A.Yu. Valdberg and N.M. Savitskaya, Generalized atomization-dispersity characteristics of hydraulic injectors, Theoret. Foundat. Chemical Engng, 1989, Vol. XXIII, No. 5, P. 689–692.

    Google Scholar 

  21. A.Yu. Valdberg, K.P. Makeev, and N.E. Nikolaikina, Examination of the particle size distribution of a liquid spray obtained on a centrifugal spray injector, Izv. MGTU “MAMI”, 2012, No. 2, P. 7–11.

    Google Scholar 

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Arefyev, K.Y., Prokhorov, A.N. & Saveliev, A.S. Study of the breakup of liquid droplets in the vortex wake behind pylon at high airspeeds. Thermophys. Aeromech. 25, 55–66 (2018). https://doi.org/10.1134/S0869864318010055

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  • DOI: https://doi.org/10.1134/S0869864318010055

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