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Lattice Boltzmann Simulation of a Cavitating Diesel Injector Nozzle
Technical Paper
2011-24-0008
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The onset of cavitating conditions inside the nozzle of diesel injectors is known to play a major role on spray characteristics, especially on jet penetration and break-up. In this work, for the first time a Direct Numerical Simulation (DNS) based on the Lattice Boltzmann Method (LBM) is applied to study the fluid dynamic field inside the nozzle of a cavitating diesel injector. The formation of the cavitating region is determined via a multi-phase approach based on the Shan-Chen Equation of State and its most recent enhancements. The evolution of cavitation bubbles is followed and the characteristic numbers, i.e., Cavitation Number (CN) and discharge coefficient (Cd) are evaluated. The results obtained by the LBM simulation are compared to both numerical and experimental data present in literature.
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Authors
Citation
Falcucci, G., ubertini, S., Bella, G., Palpacelli, S. et al., "Lattice Boltzmann Simulation of a Cavitating Diesel Injector Nozzle," SAE Technical Paper 2011-24-0008, 2011, https://doi.org/10.4271/2011-24-0008.Also In
References
- Stiesch, G. Modeling Engine Spray and Combustion Processes Springer-Verlag Heidelberg 2003
- Giannadakis, E. Papoulias, D. Gavaises, M. Arcoumanis, C. et al. “Evaluation of the Predictive Capability of Diesel Nozzle Cavitation Models,” SAE Technical Paper 2007-01-0245 2007 10.4271/2007-01-0245
- Afzal, H. Arcoumanis, C. Gavaises, M. Kampanis, N. Internal flow in diesel injector nozzles: Modelling and experiments IMechE S492/S2/99 1999
- Roth, H. Gavaises, M. Arcoumanis, C. “Cavitation Initiation, Its Development and Link with Flow Turbulence in Diesel Injector Nozzles,” SAE Technical Paper 2002-01-0214 2002 10.4271/2002-01-0214
- Tamaki, N. Shimizu, M. Nishida, K. Hiroyasu, H. Effects of cavitation and internal flow on atomization of a liquid jet Atomization and Sprays 8 2 179 197 1998
- Falcucci, G. Bella, G. Chiatti, G. Chibbaro, S. Sbragaglia, M. Succi, S. Lattice Boltzmann models with mid-range interactions Comm. Comput. Phys. 2 6 1071 1084 2007
- Falcucci, G. Ubertini, S. Succi, S. Lattice Boltzmann simulations of phase-separating flows at large density ratios: the case of doubly-attractive pseudo-potentials Soft Matter 6 4357 4365 2010
- Falcucci, G. Succi, S. Ubertini, S. Magnetically driven droplet break-up and vaporization: a lattice Boltzmann study J. Stat. Mech: Theory Exp. 2010 05010 2010
- Falcucci, G. Aureli, M. Ubertini, S. Porfiri, M. Transverse harmonic oscillations of laminae in viscous fluids: a lattice Boltzmann study Phil. Trans. Royal Soc. A 2011
- Falcucci, G. Internal Combustion Engines: Thermo-fluid dynamic aspects of intake and exhaust systems Science4Press 2010
- Ubertini, S. Asinari, P. Succi, S. Three ways to lattice Boltzmann: a unified time-marching picture Phys. Rev. E. 81 016311 2010
- Succi, S. The Lattice Boltzmann Equation for Fluid Dynamics and Beyond Clarendon Oxford 2001
- Yu, D. Mei, R. Luo, L.-S. Shyy, W. Viscous flow computations with the method of lattice Boltzmann equation Progress in Aerospace Sciences 39 329 367 2003
- Falcucci, G. Ubertini, S. Bella, G. De Maio, A. et al. “Lattice Boltzmann Modeling of Diesel Spray Formation and Break-Up,” SAE Int. J. Fuels Lubr. 3 1 582 593 2010 10.4271/2010-01-1130
- Shan, X. Chen, H. Lattice Boltzmann model for simulating flows with multiple phases and components Phys. Rev. E 47 1993
- Shan, X. Chen, H. Simulation of nonideal gases and liquid-gas phase transitions by the lattice Boltzmann equation Phys. Rev. E 49 1994
- Falcucci, G. Chibbaro, S. Succi, S. Shan, X. Chen, H. Lattice Boltzmann spray-like fluids Europhys. Lett. 82 24005 2008
- Bhatnagar, P. Gross, E. Krook, M. A model for collisional processes in gases: Small amplitude processes in charged and neutral one-component system Phys. Rev. Lett. 54 1954
- Qian, Y. D'Humières, D. Lallemand, P. P. Lattice BGK models for Navier-Stokes equation Europhysics Letters 17 6 479 484 1992
- Benzi, R. Succi, S. Vergassola, M. The lattice Boltzmann equation: Theory and applications Phys. Rep. 222 3 145 197 1992
- Winklhofer, E. Kull, E. Kelz, E. Morozov, A. Comprehensive hydraulic and flow field documentation in modl throttle experiments under cavitation conditions Proceedings of the ILASS-Europe Conference Zurich 574 579 2001
- Martynov, S. Numerical Simulation of the Cavitation Process in Diesel Fuel Injectors PhD thesis University of Brighton 2005
- Sou, A. Hosokawa, S. Tomiyama, A. Effects of cavitation in a nozzle on liquid jet atomization Int. J. Heat and Mass Trans. 50 17-18 3575 3582 2007