This content is not included in your SAE MOBILUS subscription, or you are not logged in.
CFD-3D Multi-Cycle Analysis on a New 2-Stroke HSDI Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 20, 2009 by SAE International in United States
Annotation ability available
The paper describes a CFD multidimensional and multicycle engine analysis applied to a novel 2-Stroke HSDI Diesel engine, under development since a few years at the University of Modena and Reggio Emilia. In particular, six operating conditions are considered, two of them at full load and four at partial.
The simulation tool is STAR-CD, a commercial software extensively applied by the authors to HSDI Diesel engines. Furthermore, an experimental calibration of the combustion model has been performed and reported in this paper, carrying out CFD simulations on a reference Four Stroke HSDI Diesel engine.
As expected, in the multi-cycle analysis a wide dependence of pollutants on trapped charge composition has been found. Much less relevant is the cycle-by-cycle variation in terms of performance parameters, such as trapped mass, IMEP, combustion efficiency, etc. For these parameters, 2 cycle are sufficient to reach a reasonable convergence, while for pollutants 3 or more cycles are required.
Information from multi-cycle simulation has been used to refine a 1D engine cycle model, providing a prediction on engine performance at several operating conditions. In particular, the influence of the combustion sub-model has been investigated, comparing the results obtained by entering empirical heat release laws to the results provided by a combustion model refined through multicycle 3D simulations.
CitationCantore, G., Fontanesi, S., Malaguti, S., and Mattarelli, E., "CFD-3D Multi-Cycle Analysis on a New 2-Stroke HSDI Diesel Engine," SAE Technical Paper 2009-01-0707, 2009, https://doi.org/10.4271/2009-01-0707.
- Heywood J.B. Sher E. “The Two-Stroke Cycle Engine” SAE Warrendale, PA 1999
- Daihatsu Motor Co., Ltd The 58th International Motor Show Frankfurt 1999 www.daihatsu.com/motorshow/frankfurt99/S2cd
- DeltaHawk Diesel Engines Website www.deltahawkengines.com
- Michael Zoche Antriebstechnik Website www.zoche.de
- Diesel Air Limited Website www.dair.co.uk
- Wilksch Airmotive Limited Website www.wilksch.com
- “Environment-Friendly SD (Super Diesel) Engine Developed” 23 Marzo 1999
- Knoll R. “AVL Two-Stroke Diesel Engine” SAE Paper 980757 1998
- Nomura K. Nakamura N. “Development of a New Two-Stroke Engine with Poppet-Valves: Toyota S-2 Engine” A New Generation of Two-Stroke Engines for the Future? Duret P. 53 62 atti del seminario tenuto presso IFP Rueil-Malmaison, France 29-30 Novembre 1993
- FEV Engine Technology Website www.fev.com
- Gamma Technologies “GT-Power Users Manual (version 6.1)” September 29 2004 Westmont, IL
- Cantore e G. Mattarelli E. “A New Concept for Ultra-Compact Automotive HSDI Diesel Engines” SAE Paper 2007-01-1253 2007
- Fontanesi S. Gagliardi V. Malaguti S. Mattarelli E. “Multidimensional Cycle Analysis of a Novel 2-Stroke HSDI Diesel Engines” SAE Paper 2007-01-0161 2007
- De Marco C.A. Mattarelli E. Paltrinieri F. Rinaldini C.A. “A New combustion System for 2-Stroke HSDI Diesel Engine” SAE paper 2007-01-1255 2007
- Allocca L. Auriemma M. Corcione F.E. Valentino G. Fontanesi S. Gagliardi V. Malaguti S. Riganti G. “Investigation of Mixture Formation Process in a HDDI Diesel Engine by CFD and Imaging Technique” SAE 2005-01-1918 2005
- Fontanesi S. Gagliardi V. Malaguti S. Mattarelli E. “CFD parametric analysis of the combustion chamber shape in a small HSDI Diesel engine” JSAE paper 05SETC-7, SAE paper 2005-32-0094 2005
- Fontanesi S. Gagliardi V. Malaguti S. Alfuso S. Auriemma M. Montanari A. “Experimental and numerical investigation on mixture formation in a HDDI Diesel engine with different combustion chamber geometries” SAE paper 2005-24-055 2005
- Cantore G. Fontanesi S. Gagliardi V. Malaguti S. “CFD optimisation of the in-cylinder flow patterns in a small unit displacement HSDI Diesel Engine for off-highway applications” SAE paper 06SETC-161 2006
- Blair G.P. “ Design and Simulation of Two-Stroke Engines ” SAE Warrendale, PA 1996
- Huh K.Y. Gosman A.D. 1991 ‘A phenomenological model of Diesel spray atomisation’ Proc. Int. Conf. on Multiphase Flows (ICMF 291) Tsukuba 24-27 September
- Reitz R.D. Diwakar R. 1986 ‘Effect of drop breakup on fuel sprays’ SAE Technical Paper Series 860469
- Bai C. Gosman A.D. 1995 ‘Development of methodology for spray impingement simulation’ SAE Technical Paper Series 950283
- Duclos J.M. Zolver M. Baritaud T. 1999 ‘3D modeling of combustion for DI-SI engines’ Oil & Gas Science and Technology – Rev.IFP 54 2 259 264
- Colin O. Benkenida A. “The 3-Zones Extended CoherentFlame Model (ECFM3Z) for Computing Premixed/Diffusion Combustion” Oil & Gas Science and Technology – Rev. IFP 59 2004 6 593 609
- Colin O. Pires da Cruz A. Jay S. 2004 ‘Detailed chemistry bases auto-ignition model including low temperature phenomena applied to 3D engine calculations’ 30th Symposium (International) on Combustion, The Combustion Institute
- Curran H. J. Gaffuri P. Pitz W. J. Westbrook C. K. “A comprehensive modeling study of n-heptane oxidation” Combustion and Flame 1998
- Patterson M.A. Kong S.C. Hampson G.J. Reitz R.D. 1994 “Modeling the Effects of Fuel Injection Characteristics on Diesel Engine Soot and NOx Emissions” SAE Technical Paper Series, 940523
- Cerri T. Onorati A. e Mattarelli E. “1D Engine Simulation of a Small HSDI Diesel Engine Applying a Predictive Combustion Model” Journal of Gas Turbines and Power January 2008 130 2008