Abstract
The paper studies the process of liquid atomization in high-speed gas jets with application to a subject of high-rate fuel nozzles. Experiments were carried out for gas-liquid jet with the central-axis feeding of liquid to the outlet of a confuser-type nozzle with pumping of air in subsonic and supersonic flow regimes. The energy balance approach was developed for describing a gas-liquid jet. This provided us the needed data for comprehensive description of the gasliquid jet: gas velocity field without liquid, shadow visualization of geometry and wavy structure of a jet with liquid and with pure gas, velocity profiles for liquid phase, spray droplet size, spray concentration and spatial distribution. The gas-liquid flow was characterized by Weber number from the time of liquid jet breakup till the final spray.
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B.E. Gelfand, Droplet breakup phenomena in flows with velocity lag, Progress Energy Combustion. Sci., 1996, Vol. 22, P. 201–265.
A.A. Borisov, B.E. Gelfand, M.S. Natanzon, and D.M. Kosov, Droplet breakup regimes and criteria for their existence, J. Engng, 1981, Vol. 40, No. 1, P. 44–49.
O.G. Engel, Fragmentation of waterdrops in the zone behind an air shock, J. Research of the National Bureau of Standards, 1958, Vol. 60, No. 3, P. 245–280.
A.A. Ranger and J.A. Nicholls, Aerodynamics shattering of liquid drops, AIAA J., 1969, Vol. 7, No. 2, P. 285–290.
M. Pilch and C.A. Erdman, Use of breakup time data and velocity history data to predict the maximum size of stable fragments for acceleration-induced breakup of liquid drop, Int. J. Multiphase Flow, 1987, Vol. 13, P. 741–757.
V.M. Boiko, A.N. Papyrin, and S.V. Poplavskii, Dynamics of droplet breakup in shock waves, J. of Applied Mechanics and Technical Physics, 1987, Vol. 28, No. 2, P. 263–269.
V.M. Boiko and S.V. Poplavski, Experimental study of two types of stripping breakup of the drop in the flow behind the shock wave, Combustion, Explosion, and Shock Waves, 2012, Vol. 48, No. 4, P. 440–445.
V.M. Boiko and S.V. Poplavski, Particle and drop dynamics in the flow behind a shock wave, Fluid Dynamics, 2007, Vol. 42, No. 3, P. 433–441.
V.M. Boiko and S.V. Poplavski, On the dynamics of drop acceleration at the early stage of velocity relaxation in a shock wave, Combustion, Explosion, and Shock Waves, 2009, Vol. 40, No. 2, P. 198–204.
K. Yu. Arefyev, A. N. Prokhorov, and A.S. Saveliev. Study of the breakup of liquid droplets in the vortex wake behind pylon at high airspeeds, Thermophysics and Aeromechanics, 2018, Vol. 25, No. 1, P. 55–66.
Yu.A. Lozhkin, D.M. Markovich, M.A. Pakhomov, and V.I. Terekhov, Investigation of the structure of a polydisperse gas-droplet jet in the initial region. Experiment and numerical simulation, Thermophysics and Aeromechanics, 2014, Vol. 21, No. 3, P. 293–307.
V.A. Arkhipov, V.M. Boiko, V.D. Goldin, E.A. Maslov, S.E. Orlov, S.V. Poplavskiy, I.K. Zharova, and A.S. Usanina, Mathematical modelling of the liquid atomization process by cocurrent gas flow, IOP Conf. Series: Materials Sci. and Engng., 2016, Vol. 124, No. 1, P. 012076–1–012076–6.
H.S. Couto, J.A. Carvalho, and Jr.D. Bastos-Netto, The spider-jet atomizer: an evolution of the y-jet atomizer concept, IV Asian — Pacific Intern. Symp. of Combustion and Energy Utilization, 1997, P. 310–315.
J.A. Schetz, P.M. Hewitt, and M. Situ, Transverse jet breakup and atomization with rapid vaporization along trajectory, AIAA J., 1985, Vol. 23, No. 3, P. 596–607.
G.M. Faeth, Structure and atomization properties of dense sprays, in: Int. Symp. Combustion. Pittsburgh, PA: Combustion Institute, 1990, P. 1345–1352
J.C. Lasheras and E.J. Hopfinger, Liquid jet instability and atomization in a coaxial gas stream, Annual Rev. Fluid Mech., 2000, Vol. 32, P. 275–308.
T.G. Teofanous and G.J. Li, On the physics of aerobreakup, Phys. Fluids, 2008, Vol. 20, P. 052103–1–052103–14.
T.G. Theofanous, V.V. Mitkin, C.L. Ng, C.H. Chang, X. Deng, and S. Sushchikh, The physics of aerobreakup. II. Viscous liquids, Phys. Fluids, 2012, Vol. 24, P. 022104–1–022104–39.
V.V. Mitkin and T.G. Theofanous, The physics of aerobreakup. IV. Strain-thickening liquids, Phys. Fluids, 2017, Vol. 29, P. 122101–1–122101–10.
S.V. Poplavski, V.M. Boiko, O.A. Gobyzov, M.N. Ryabov, and A.V. Bilsky, Experimental study of the breakup of microdrops and drops of natural size in gradient flows, in: AIP Conf. Proceedings, 2018, Vol. 2027, Iss. 1, P. 020003–1–020003–7.
L.P. Hsiang and G.M. Faeth, Drop properties after secondary breakup, Int. J. Multiphase Flow, 1993, Vol. 19, No. 5, P. 721–735.
V.M. Boiko, V.I. Zapryagaev, A.A. Pivovarov, and S.V. Poplavski, Correction for PIV data for digital recovery of gas velocity in a supersonic subexpanding jets, Combustion, Explosion, and Shock Waves, 2015, Vol. 51, No. 5, P. 587–596.
V.M. Boiko, A.M. Orishich, A.A. Pavlov, and V.V. Pikalov, Methods for Optical Diagnostics in Aerophysical Experiments, ed. by V.M. Fomin, NSU Publ., Novosibirsk, 2009.
S.V. Poplavski, V.M. Boiko, and A.U. Nesterov, On the peculiarities of LDA method in two-phase flows with high concentration of particles, in: AIP Conf. Proceedings, 2016, P. 030016-1–030016-6.
V.M. Boiko and S.V. Poplavski, The complex of optical methods for study of gas-liquid jets, in: AIP Conf. Proceedings, 2017, Vol. 1893, P. 030002-1–030002-6.
V.M. Boiko, A.U. Nesterov, S.V. Kondratev, A.A. Morozov, and A.K. Potekhin, Laser Doppler anemometer based on the Fizeau interferometer, in: AIP Conf. Proceedings, 2017, Vol. 1893, P. 020015-1–020015-7.
V.I. Terekhov, D.Yu. Starodumova, and K.A. Sharov, PIV measurement of mean and pulsating velocities in a gas-droplet jet with low concentration of dispersed phase, Thermophysics and Aeromechanics, 2008, Vol. 15, No. 3, P. 401–407.
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Research was supported by the Program for fundamental research by the state academies of sciences for 2013–2020 years (project AAAA-A17-117030610137-0).
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Boiko, V.M., Nesterov, A.Y. & Poplavski, S.V. Liquid atomization in a high-speed coaxial gas jet. Thermophys. Aeromech. 26, 385–398 (2019). https://doi.org/10.1134/S0869864319030077
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DOI: https://doi.org/10.1134/S0869864319030077