This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
LES and RNG Turbulence Modeling in DI Diesel Engines
Technical Paper
2003-01-1069
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The one-equation subgrid scale model for the Large Eddy Simulation (LES) turbulence model has been compared to the popular k-ε RNG turbulence model in very different sized direct injection diesel engines. The cylinder diameters of these engines range between 111 and 200 mm. This has been an initial attempt to study the effect of LES in diesel engines without any modification to the combustion model being used in its Reynolds-averaged Navier-Stokes (RANS) form. Despite some deficiencies in the current LES model being used, it already gave much more structured flow field with approximately the same kind of accuracy in the cylinder pressure predictions than the k-ε RNG turbulence model.
Recommended Content
Authors
Topic
Citation
Kaario, O., Pokela, H., Kjäldman, L., Tiainen, J. et al., "LES and RNG Turbulence Modeling in DI Diesel Engines," SAE Technical Paper 2003-01-1069, 2003, https://doi.org/10.4271/2003-01-1069.Also In
Computer Aided Engineering of Vehicle & Engine Systems & Components
Number: SP-1740; Published: 2003-03-03
Number: SP-1740; Published: 2003-03-03
References
- Celik, I. Yavuz, I. Smirnov, A. Large eddy simulations of in-cylinder turbulence for internal combustion engines Int. J. Engine Research 2 2 119 148 2001
- Sone, K. Menon, S. The effect of subgrid modeling on the in-cylinder unsteady mixing process in a direct injection engine ASME-ICE division spring technical conference Philadelphia, Pennsylvania 29 April 2 May 2001
- Celik, I. B. Lewellen, W. S. Kuhlman, J. M. Amin, E. Gel, A. Lewellen, D. Smirnov, A. Smith, J. Yavuz, I. Large eddy simulation of diesel combustion chambers US Army Research Office final report, Mechanical and aerospace engineering department West Virginia University 22 December 1999
- Sankaran, V. Menon, S. LES of spray combustion in compressible high Reynolds number swirling flows Turbulence and shear flow phenomena, Int. Symposium KTH Stockholm 27 29 6 2001
- Menon, S. Subgrid combustion modelling for large-eddy simulations Int. J. Engine Research 1 2 209 227 2000
- Magnussen, B. F. Hjertager, B. H. On mathematical modeling of turbulent combustion with special emphasis on soot formation and combustion Sixteenth Symposium (International) on Combustion 719 729 The Combustion Institute Pittsburgh 1976
- Abraham, J. Bracco, F.V. Reitz, R. D. Comparisons of computed and measured premixed charge engine combustion Combust. Flame 60 309 322 1985
- Kong, S.-C. Reitz, R. D. Multidimensional Modeling of Diesel Ignition and Combustion Using a Multistep Kinetics Model Journal of Engineering for Gas Turbines and Power 115 781 789 1993
- Reitz, R. D. Diwakar, R. Effect of drop break up on fuel sprays SAE Technical paper 860469 1986
- O'Rourke, P. J. Collective drop effects on vaporising liquid sprays University of Princeton 1981
- Hiroyasu, H. Nishida, K. Simplified three-dimensional modeling of mixture formation and combustion in a D.I. diesel engine SAE Technical paper 890269 1989
- Belardini, P. Bertoli, C. Ciajolo, A. D-Anna, A. Del Giacomo, N. Three-dimensional calculations of DI diesel engine combustion and comparison with in-cylinder sampling valve data SAE Technical paper 922225 1992
- Kaario, O.T. Larmi, M. Tanner, F.X. Relating integral length scale to turbulent time scale and comparing k-ε and RNG k-ε turbulence models in diesel combustion simulation SAE paper 2002-01-1117 2002
- Kaario, O.T. Larmi, M. Tanner, F.X. Comparing single-step and multi-step chemistry using the laminar and turbulent characteristic time combustion model in two diesel engines SAE paper 2002-01-1749 2002
- Patterson, M. A. Kong, S.-C. Hampson, G. J. Reitz, R. D. Modeling the effects of fuel injection characteristics on diesel engine soot and NOx emissions SAE Technical paper 940523 1994