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http://dx.doi.org/10.3795/KSME-B.2010.34.9.817

Study of Grid Dependency of Sheet Atomization Model of a Pressure-Swirl Atomizer  

Moon, Yoon-Wan (Rocket Engine Dept., Korea Aerospace Research Institute)
Seol, Woo-Seok (Rocket Engine Dept., Korea Aerospace Research Institute)
Yoon, Young-Bin (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.9, 2010 , pp. 817-824 More about this Journal
Abstract
An improved spray model of a pressure-swirl atomizer was developed and the grid dependency of the model was investigated. Since the Lagrangian-Eulerian approach was adopted for tracking droplets, very small grids could not be used. However, in order to detect swirl flow accurately, small grids were needed because of the consideration of swirl injection. In order to overcome these limitations, numerical studies were performed by using various grids with cell sizes ranging from 10.0 $\times$ 10 mm to 0.625 $\times$ 0.625 mm. From these calculated results, it was observed that the most efficient grid cell size was 1.25 $\times$ 1.25 mm.
Keywords
Sheet Breakup; Grid Dependency; Liquid Mass Fraction; Hydraulic Analysis; Linear Stability Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Schmidt, D.P. and Rutland, C.J., 2004, "Reducing Grid Dependency in Droplet Collision Modeling," J. Engineering for Gas Turbines and Power, Vol. 126, pp. 227-233.   DOI   ScienceOn
2 Karlsson, J.A.J, 1995, Modeling Auto-Ignition, Flame Propagation and Combustion in Non- Stationary Turbulent Sprays, Ph.D. Dissertation, Chalmers University of Technology, Sweden.
3 Kim, D., Im, J.-H., Khil, T., Han, P and Yoon, Y., 2006, "Spray Breakup Characteristics of a Swirl Injector in High Pressure Environments," J. of KSAS, Vol. 34, No. 7. pp. 97-104.   과학기술학회마을   DOI   ScienceOn
4 Bayvel, L. and Orzechowski, Z., 1993, Liquid Atomization, Taylor & Francis.
5 Zong, N. and Yang, V., 2006, "Cryogenic Fluid Jets and Mixing Layers in Transcritical and Supercritical Environments," Combust. Sci. and Tech., Vol. 178, pp. 193-227.   DOI   ScienceOn
6 Dityakin, Yu. F., Klyachko, L. A., Novikov, B. V. and Yagodkin, V. I., 1977, Liquid Atomization, Machnostroenie, Moscow, (in Russian).
7 Dombrowski, N and Johns, W. R., 1963, "The Aerodynamic Instability and Disintegration of Viscous Liquid Sheets," Chem. Eng. Sci., Vol. 18, pp. 203-214.   DOI   ScienceOn
8 Amsden, A. A., O'Rourke, P. J. and Butler, T. D., 1989, KIVA-II: A Computer Program for Chemically Reactive Flows with Sprays, Los Alamos National Laboratory, LA-11560-MS.
9 Rizk, N. K. and Lefebvre, A. H., 1980, "The Influence of Liquid Film Thickness on Airblast Atomization," J. of Engineering for Power, Vol. 102, No. 3, pp. 706-710.   DOI
10 Inamura, T., Tamura, H. and Sakamoto, H., 2003, "Characteristics of Liquid Film and Spray Injected from Swirl Coaxial Injector," J. of Propulsion and Power, Vol. 19, No. 4, pp. 632-639.   DOI   ScienceOn
11 Senecal, P.K., Schmidt, D.P., Nouar, I., Rutland, C.J., Reitz, R.D. and Corradini, M.L., 1999, "Modeling High-Speed Viscous Liquid Sheet Atomization," Intl. J. of Multiphase Flow, Vol. 25, pp. 1073-1097.   DOI   ScienceOn
12 Moon, Y. and Seol, W.-S., 2007, "Development and Validation of Spray Model of Coaxial Swirl Injector Installed in Liquid Propellant Rocket Engine," J. of KSPE, Vol. 11, No. 5, pp. 37-50.   과학기술학회마을