Facteur d'impact sur 5 ans:
ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684
Volume 29, 2019
Volume 28, 2018
Volume 27, 2017
Volume 26, 2016
Volume 25, 2015
Volume 24, 2014
Volume 23, 2013
Volume 22, 2012
Volume 21, 2011
Volume 20, 2010
Volume 19, 2009
Volume 18, 2008
Volume 17, 2007
Volume 16, 2006
Volume 15, 2005
Volume 14, 2004
Volume 13, 2003
Volume 12, 2002
Volume 11, 2001
Volume 10, 2000
Volume 9, 1999
Volume 8, 1998
Volume 7, 1997
Volume 6, 1996
Volume 5, 1995
Volume 4, 1994
Volume 3, 1993
Volume 2, 1992
Volume 1, 1991
Atomization and Sprays
EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE EFFECTS OF CAVITATION REGIME ON SPRAY PARAMETERS OF STEPPED PLAIN ORIFICE ATOMIZERS
Mainstream Engineering Corporation, Rockledge, FL 32955, USA
Department of Mechanical and Civil Engineering, Florida Institute of
Technology, Melbourne, FL 32901, USA
An experimental/computational study is presented to investigate the global spray characteristics of a stepped plain orifice atomizer composed of a small orifice upstream, a large orifice downstream coaxial with the small orifice, and a sharp transition between the small and large orifices. We explore a series of five different stepped geometries that gives rise to different two-phase flow patterns within
the injector that translate to differences in spray angle, discharge coefficient, and droplet statistics. It was discovered that the stepped geometry operates in four distinct regimes that are controlled by the two-phase flow regime at the exit plane of the injector. Unlike conventional injectors, spray angle, discharge coefficient, and droplet size vary dramatically across the operating regimes for these injectors. An axisymmetric computational model was exercised across relevant operating conditions, and calculated turbulence quantities were compared to measured spray angles and droplet sizes across all
operating regimes. It was found that the spray angle is strongly proportional to the turbulence intensity
at the exit plane of the injector, and the average droplet size is strongly inversely proportional to the turbulent kinetic energy at the exit plane of the injector.
Antal, S.P., Lahey, R.T., and Flaherty, J.E., Analysis of Phase Distribution in Fully Developed Laminar Bubbly Two-Phase Flow, Int. J. Multiphase Flow, vol. 17, no. 5, pp. 635-652,1991.
Arcoumanis, C., Flora, H., Gavaises, M., and Badami, M., Cavitation in Real-Size Multi-Hole Diesel Injector Nozzles, SAE 2000 World Congress, Detroit, MI, 2000.
Burns, A.D., Frank, T., Hamill, I., and Shi, J., The Favre Averaged Drag Model for Turbulent Dispersion in Eulerian Multi-Phase Flows, Proc. of 5th International Conference on Multiphase Flow, ICMF04, Yokohama, Japan, 2004.
Canny, J., A Computational Approach to Edge Detection, IEEE Trans. Pattern Anal. Mach. Intell., vol. 8, no. 6, pp. 679-698,1986.
Chausalkar, A., Kong, S., and Michael, J., Multicomponent Droplet Breakup during Heated Wall Impingement, ILASS-Americas 29th Annual Conf. on Liquid Atomization and Spray Systems, Atlanta, GA, 2017.
Cole, G.S., Scaringe, R.P., Roth, R.P., and Peles, Y., System Evaluation of Cavitation Enhanced Heat Transfer in Microchannels, Power Systems Conference, 2006.
Duke, D., Swantek, A., Tilocco, Z., Kastengren, A., Fezzaa, K., Neroorkar, K., Moulai, M., Powell, C., and Schmidt, D., X-Ray Imaging of Cavitation in Diesel Injectors, SAE Int. J. Engines, vol. 7, no. 2, pp. 1003-1016,2014.
Han, J.-S., Lu, P.-H., Xie, X.-B., Lai, M.-C., and Henein, N.A., Investigation of Diesel Spray Primary Break-Up and Development for Different Nozzle Geometries, SAE Powertrain Fluid Systems Conf. Exhibition, San Diego, CA, 2002.
He, Z., Zhong, W., Wang, Q., Jiang, Z., and Shao, Z., Effect of Nozzle Geometrical and Dynamic Factors on Cavitating and Turbulent Flow in a Diesel Multi-Hole Injector Nozzle, Int. J. Therm. Sci., vol. 70, Supplement C, pp. 132-143,2013.
Hoire, A. and Ziou, D., Image Quality Metrics: PSNR vs. SSIM, 20th Int. Conf. on Pattern Recognition, Istanbul, Turkey, 2010.
Im, K.S., Cheong, S.K., Powell, C.F., Lai, M.C., and Wang, J., Unraveling the Geometry Dependence of In-Nozzle Cavitation in High-Pressure Injectors, Sci. Rep, vol. 3, p. 2067, 2013.
Ishii, M. and Hibiki, T., Thermo-Fluid Dynamics of Two-Phase Flow, Berlin: Springer, 2007.
Jahangirian, S., Egelja, A., and Li, H., A Detailed Computational Analysis of Cavitating and Non-Cavitating High Pressure Diesel Injectors, SAE 2016 World Congress and Exhibition, Detroit, MI, 2016.
Lad, N., Aroussi, A., and Muhamad Said, M.F., Droplet Size Measurement for Liquid Spray Using Digital Image Analysis Technique, J. Appl. Sci., vol. 11, pp. 1966-1972,2011.
Lefebvre, A.H., Atomization and Sprays, New York: Hemisphere Pub. Corp., 1989.
Liu, H.-L., Wang, J., Wang, Y., Zhang, H., and Huang, H., Influence of the Empirical Coefficients of Cavitation Model on Predicting Cavitating Flow in the Centrifugal Pump, Int. J. Naval Architect. Ocean Eng., vol. 6, no. 1,pp. 119-131,2014.
Mitroglou, N., Lorenzi, M., Santini, M., and Gavaises, M., Application of X-Ray Micro-Computed Tomography on High-Speed Cavitating Diesel Fuel Flows, Experiments Fluids, vol. 57, no. 11, p. 175, 2016.
Mitroglou, N., McLorn, M., Gavaises, M., Soteriou, C., and Winterbourne, M., Instantaneous and Ensemble Average Cavitation Structures in Diesel Micro-Channel Flow Orifices, Fuel, vol. 116, Supplement C, pp. 736-742, 2014.
Morel, C., Turbulence Modeling and First Numerical Simulations in Turbulent Two-Phase Flows, CEA, Grenoble, France, Tech. Rep. SMTH/LDMS/97-023, 1997.
Nurick, W.H., Orifice Cavitation and Its Effect on Spray Mixing, J. Fluids Eng., vol. 98, no. 4, pp. 681-687, 1976.
Payri, F., Bermudez, V., Payri, R., and Salvador, F.J., The Influence of Cavitation on the Internal Flow and the Spray Characteristics in Diesel Injection Nozzles, Fuel, vol. 83, no. 4, pp. 419-431, 2004.
Payri, F., Payri, R., Salvador, F.J., and Martinez-Lopez, J., A Contribution to the Understanding of Cavita- tion Effects in Diesel Injector Nozzles through a Combined Experimental and Computational Investigation, Computers Fluids, vol. 58, Supplement C, pp. 88-101, 2012.
Politano, M.S., Carrica, P.M., and Converti, J., A Model for Turbulent Polydisperse Two-Phase Flow in Vertical Channels, Int. J. Multiphase Flow, vol. 29, no. 7, pp. 1153-1182, 2003.
Reitz, R.D., Atomization and Other Breakup Regimes of a Liquid Jet, PhD, Princeton, 1978.
Roth, H., Gavaises, M., and Arcoumanis, C., Cavitation Initiation, Its Development and Link with Flow Turbulence in Diesel Injector Nozzles, SAEInt. J. Engines, vol. 111, no. 3, pp. 561-580, 2002.
Rzehak, R. and Krepper, E., CFD Modeling of Bubble-Induced Turbulence, Int. J. Multiphase Flow, vol. 55, Supplement C, pp. 138-155, 2013.
Saha, K. and Li, X., Assessment of Cavitation Models for Flows in Diesel Injectors with Single- and Two-Fluid Approaches, J. Eng. Gas Turbines Power, vol. 138, no. 1, pp. 011504-011511, 2015.
Schiller, L. and Naumann, Z., A Drag Coefficient Correlation, Z. Ver. Deutsch. Ing, vol. 77, pp. 318-320, 1935.
Schneider, B., Kosar, A., and Peles, Y., Hydrodynamic Cavitation and Boiling in Refrigerant (R-123) Flow inside Microchannels, Int. J. Heat Mass Transf., vol. 50, no. 13, pp. 2838-2854, 2007.
Som, S., Aggarwal, S.K., El-Hannouny, E.M., and Longman, D.E., Investigation of Nozzle Flow and Cavitation Characteristics in a Diesel Injector, J. Eng. Gas Turbines Power, vol. 132, no. 4, pp. 042802-042812,2010.
Soteriou, C., Andrews, R., and Smith, M., Direct Injection Diesel Sprays and the Effect of Cavitation and Hydraulic Flip on Atomization, Warrendale, PA: SAE International, 1995.
Sou, A., Hosokawa, S., and Tomiyama, A., Effects of Cavitation in a Nozzle on Liquid Jet Atomization, Int. J. Heat Mass Transf, vol. 50, no. 17, pp. 3575-3582,2007.
Sun, Z.-Y., Li, G.-X., Chen, C., Yu, Y.-S., and Gao, G.-X., Numerical Investigation on Effects of Nozzle's Geometric Parameters on the Flow and the Cavitation Characteristics within Injector's Nozzle for a High-Pressure Common-Rail DI Diesel Engine, Energy Convers. Manage., vol. 89, Supplement C, pp. 843-861,2015.
Sykes, D., Gattoni, J., and Yelvington, P.E., Investigation of Spray Regimes for a Supercavitating Injector Geometry, ILASS-Americas 29th Annual Conf. on Liquid Atomization and Spray Systems, Atlanta, GA, 2017.
Tomiyama, A., Kataoka, I., Zun, I., and Sakaguchi, T., Drag Coefficients of Single Bubbles under Normal and Micro Gravity Conditions, JSMEInt. J. Ser. B, vol. 41, no. 2, pp. 472-479, 1998.
Torelli, R., Som, S., Pei, Y., and Traver, M., Internal Nozzle Flow Simulations of Gasoline-Like Fuels under Diesel Operating Conditions, ILASS-Americas 29th Annual Conf. on Liquid Atomization and Spray Systems, Atlanta, GA, 2017.
Troshko, A.A., A Two-Equation Multidimensional Model of Turbulent Bubbly Flows, PhD, Texas A&M University, 2000.
Zhou, X., Measurement and Modeling of the Liquid-Phase Turbulence in Adiabatic Air-Water Two-Phase Flows with a Wide Range of Void Fractions, PhD, Ohio State University, 2014.
Zwart, P.J., Gerber, A.G., and Belarmi, T., A Two-Phase Flow Model for Predicting Cavitation Dynamics, Fifth Int. Conf. on Multiphase Flow, Yokohama, Japan, 2004.
Articles with similar content:
NEAR FIELD VISUALIZATION OF DIESEL SPRAY FOR DIFFERENT NOZZLE INCLINATION ANGLES IN NON-VAPORIZING CONDITIONS
Atomization and Sprays, Vol.27, 2017, issue 3
Alberto Viera, Raul Payri, Pedro Marti-Aldaravi, Gabriela Bracho
ASSESSMENT OF ATOMIZATION MODELS FOR DIESEL ENGINE SIMULATIONS
Atomization and Sprays, Vol.19, 2009, issue 9
S. Som, Suresh Aggarwal
DEVELOPMENT OF MICRO-DIESEL INJECTOR NOZZLES VIA MEMS TECHNOLOGY AND EFFECTS ON SPRAY CHARACTERISTICS
Atomization and Sprays, Vol.13, 2003, issue 5&6
Michael L. Corradini, James P. Blanchard, Seunghyun Baik