Abstract
A shadowgraph technique developed in this work aims to investigate the influence of swirl in air-blast atomizer such as the ones adopted in gas turbine engines. In this our initial effort, the system includes a light source, a high-speed camera, a swirl atomizer, a compressed air system, gas and liquid regulators. The light source here is a 700 W continuous LED lamb. A suitable camera is 5 to 10 kHz with a spatial resolution of 10 µm. The preliminary outcome shows that the flow rate significantly affects the spray structure and spray angle. This needs to be investigated further to understand in detailed about micro information of liquid fragments deriving from the liquid jet in atomizing zone when accounting for swirl and/or turbulent conditions and this will be done and reported in our future work.
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References
Ragland, K.W., Bryden, K.M.: Combustion Engineering. CRC Press, Taylor & Francis Group, Boca Raton (2011)
Varga, C.M., Lashera, J.C., Hopfinger, E.J.: Initial breakup of a small diameter liquid jet by a high-speed gas stream. J. Fluid Mech. 497, 405–435 (2003)
Dumouchel, C.: On the experimental investigation on primary atomization of liquid streams. Exp. Fluids 45, 371–422 (2003)
Hsiang, L.P., Faeth, G.M.: Near-limit drop deformation and secondary breakup. Int. J. Multiph. Flow 18(5), 635–652 (1992)
Liu, A.B., Reitz, R.D.: Mechanism of air-assisted liquid atomization. Atomization Sprays 3, 55–75 (1993)
Ghaemi, S., Rahimi, P., Nobes, D.S.: Assessment of parameter for distinguishing droplet shape in a spray field using image-based technique. Atomization Sprays 19(9), 809–831 (2009)
Labowsky, M.: Calculation of the burning rates of interacting fuel droplets. Combust. Sci. Technol. 22(5–6), 217–226 (1980)
Chiang, C., Sirignano, W.: Interacting, convecting, vaporizing fuel droplets with variable properties. Int. J. Heat Mass Transf. 36(4), 875–886 (1993)
Faeth, G.M., Hsiang, L.P., Wu, P.K.: Structure and breakup properties of sprays. Int. J. Multiph. Flow 21, 99–127 (1995)
Guildenbecher, D.R., Lopez-Rivera, C., Sojka, P.E.: Secondary atomization. Exp. Fluids 46, 371–402 (2009)
Allen, C.A.W., Watts, K.C.: Comparative analysis of the atomization characteristics of fifteen biodiesel fuel types. Am. Soc. Agric. Eng. 43(2), 207–211 (2000)
Park, S.H., Kim, H.J., Suh, H.K., Lee, C.S.: A study on the fuel injection and atomization characteristics of soybean oil methyl ester (SME). Int. J. Heat Fluid Flow 30, 108–116 (2009)
Kostas, J., Honnery, D., Soria, J.: Time resolved measurements of the initial stages of fuel spray penetration. Fuel 88, 2225–2237 (2009)
Kostas, J., Honnery, D., Soria, J., Kastengren, A., Liu, Z., Powell, C.F., Wang, J.: Effect of nozzle transients and compressibility on the penetration of fuel sprays. Appl. Phys. Lett. 95, 024101 (2009)
Kostas, J., Honnery, D., Soria, J.: A correlation image velocimetry-based study of high-pressure fuel spray tip evolution. Exp. Fluids 51, 667–678 (2011)
Pham, P.X., Kourmatzis, A., Masri, A.R.: Simultaneous volume-velocity measurements in the near-field of atomizing sprays. Meas. Sci. Technol. 28(115203), 1–13 (2019)
Park, S.W., Kim, S., Lee, C.S.: Effects of mixing ratio of biodiesel on breakup mechanisms of monodispersed droplets. Energy Fuels 20, 1709–1715 (2006)
Arcoumanis, C., Whitelaw, D.S., Whitelaw, J.H.: Breakup of droplets of Newtonian and non-Newtonian fluids. Atomization Sprays 6, 245–256 (1996)
Hwang, S., Liu, Z., Reitz, R.D.: Breakup mechanism and drag coefficients of height-speed vaporizing liquid drops. Atomization Sprays 6, 353–376 (1996)
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This work is financially supported by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 107.01-2018.310.
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Pham, P.X. et al. (2020). Development of a Backlight Imaging System to Investigate Liquid Breakup in Near-Field Swirl Atomizer. In: Sattler, KU., Nguyen, D., Vu, N., Tien Long, B., Puta, H. (eds) Advances in Engineering Research and Application. ICERA 2019. Lecture Notes in Networks and Systems, vol 104. Springer, Cham. https://doi.org/10.1007/978-3-030-37497-6_30
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