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Nozzle Flow and Cavitation Modeling with Coupled 1D-3D AVL Software Tools
Technical Paper
2011-24-0006
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper is devoted to the coupled 1D-3D modeling technology of injector flow and cavitation in diesel injections systems. The technology is based on the 1D simulation of the injector with the AVL software BOOST-HYDSIM and 3D modeling of the nozzle flow with AVL FIRE. The nozzle mesh with spray holes and certain part of the nozzle chamber is created with the FIRE preprocessor. The border between the 1D and 3D simulation regions can be chosen inside the nozzle chamber at any position along the needle shaft. Actual coupling version of both software tools considers only one-dimensional (longitudinal) needle motion. Forthcoming version already includes the two-dimensional motion of the needle. Furthermore, special models for the needle tip contact with the nozzle seat and needle guide contact with the nozzle wall are developed in HYDSIM. The co-simulation technology is applied for different common rail injectors in several projects. It proved to be an efficient and user-friendly engineering tool. An example of piezoelectric common rail injector with a minisac nozzle is presented. Based on it, different numerical and technical aspects of the nozzle flow and cavitation modeling are discussed.
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Caika, V. and Sampl, P., "Nozzle Flow and Cavitation Modeling with Coupled 1D-3D AVL Software Tools," SAE Technical Paper 2011-24-0006, 2011, https://doi.org/10.4271/2011-24-0006.Also In
References
- Alajbegovic, A. Greif, D. Basara, B. Iben, U. Cavitation Calculation with the Two-fluid Model 3 rd European-Japanese Two-phase Flow Group Meeting Certosa di Pontignano Italy September 2003
- Arcoumanis, C. Flora, H. Gavaises, M. Badami, M. “Cavitation in Real-Size Multi-Hole Diesel Injector Nozzles,” SAE Trans. J. of Engines 109 2000 10.4271/2000-01-1249
- AVL BOOST HYDSIM User's Guide Graz 2010
- AVL FIRE Eulerian Multiphase Graz 2010
- Boecking, F. et al. Passenger Car Common Rail Systems for Future Emissions Standards MTZ 7 8 2005 66 552 557
- Chen, Y. Heister, S.D. Modeling Cavitating Flows in Diesel injectors Atomization and Sprays 1996 6 709 726
- Čaika, V. Kammerdiener, T. Dörr, N. “Operation of Piezoelectric Common Rail Injector with Diesel and FT-Kerosene,” SAE Technical Paper 2007-24-0070 2007 10.4271/2007-24-0070
- Čaika, V. Sampl, P. Tatschl, R. Krammer, J. et al. “Coupled 1D-3D Simulation of Common Rail Injector Flow Using AVL HYDSIM and FIRE,” SAE Technical Paper 2009-24-0029 2009 10.4271/2009-24-0029
- Drew, D.A. Passman, S.L. Theory of Multi-component Fluids Springer New York 1998
- Ishii, M. Thermo Fluid Dynamic Theory of Two-Phase Flow Eyrolles Paris 1975
- Giannadakis, E. Gavaises, M. Arcoumanis, C. Modeling of Cavitation in Diesel injector Nozzles J. Fluid Mechanics 2008 616 153 193
- Payri, F. Margot, X. Patouna, S. Ravet, F. et al. “A CFD Study of the Effect of the Needle Movement on the Cavitation Pattern of Diesel Injectors,” SAE Technical Paper 2009-24-0025 2009 10.4271/2009-24-0025
- Sun, X. Kim, S. Ishii, M. Beus, S. Modeling of Bubble Coalescence and Disintegration in Confined Upward Two-phase Flow Nuclear Engineering and Design 230 3 26 2004
- Wang, D.M. Greif, D. Progress in Modeling Injector Cavitating Flows with a Multi-fluid Method FEDSM2006-98501, ASME Forum on Cavitation and Multiphase Flow Miami, FL, USA July 2006
- Wang, D.M. et al. Interfacial Area and Number Density Transport Equations For Modeling Multiphase Flows with Cavitation Proc. ASME 9th Int. Symposium on Gas-Liquid Two-Phase Flow, FEDSM'05 Houston, Texas, USA June 2005
- Schmidt, D.P. Corradini, M.L. The Internal Flow of Diesel Fuel injector Nozzles Int. J. Engine Research 2001 2 1 22
- Sou, A. Kinugasa, T. Numerical Simulation of Developing Cavitating Flow in a Nozzle of Pressure Atomizer THIESEL 2010 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines Valencia, Spain September 2010
- Yuan, W. Schnerr, G.H. Cavitation in Injection Nozzles: Effect of Injection Pressure Fluctuations Proc. 4 th Int. Symposium on Cavitation Pasadena, CA, USA 2001