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Combustion Modeling of Diesel Sprays
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 5, 2016 by SAE International in United States
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Several models for ignition, combustion and emission formation under diesel engine conditions for multi-dimensional computational fluid dynamics have been proposed in the past. It has been recognized that the use of a reasonably detailed chemistry model improves the combustion and emission prediction especially under low temperature and high exhaust gas recirculation conditions.
The coupling of the combustion chemistry and the turbulent flow can be achieved with different assumptions. In this paper we investigate a selection of n-heptane spray experiments published by the Engine Combustion Network (ECN spray H) with three different combustion models: well-stirred reactor model, transient interactive flamelet model and progress variable based conditional moment closure. All models cater for the use of detailed chemistry, while the turbulence-chemistry interaction modeling and the ability to consider local effects differ.
The same chemical mechanism is used by all combustion models, which allows a comparison of ignition delay, flame stabilization and flame lift-off length between the experiments and the results from simulations using the different combustion models. The investigated parameters influence the predictions of computational fluid dynamics simulations of diesel engines. This study indicates that the most reasonable behavior with respect to ignition, flame stabilization and flame structure is predicted by the progress variable based conditional moment closure model.
CitationLehtiniemi, H., Borg, A., and Mauss, F., "Combustion Modeling of Diesel Sprays," SAE Technical Paper 2016-01-0592, 2016, https://doi.org/10.4271/2016-01-0592.
- Peters, N., Turbulent Combustion. Cambridge University Press, Cambridge, 2000.
- Peters, N., “Multiscale combustion and turbulence,” Proc. Combust. Inst. 30(1):1-25, 2009.
- Pope, S.B., “Small scales, many species and the manifold challenges of turbulent combustion,” Proc. Combust. Inst. 34(1):1-31, 2013.
- http://www.sandia.gov/ecn/, accessed May 2015.
- Pickett, L., Siebers, D., and Idicheria, C., "Relationship Between Ignition Processes and the Lift-Off Length of Diesel Fuel Jets," SAE Technical Paper 2005-01-3843, 2005, doi:10.4271/2005-01-3843.
- Vishwanathan, G. and Reitz, R. D., “Development of a practical soot modeling approach and its application to low-temperature diesel combustion,” Combust. Sci. Technol. 182:1050-1082, 2010.
- Pang, K. M., Jangi, M., Bai, X.-S. and Schramm, J., “Evaluation and optimization of phenomenological multi-step soot model for spray combustion under diesel engine-like conditions,” Combust. Theor. Model. 19(3):279-308, 2015.
- Peng Kärrholm, F., Tao, F., and Nordin, N., "Three-Dimensional Simulation of Diesel Spray Ignition and Flame Lift-Off Using OpenFOAM and KIVA-3V CFD Codes," SAE Technical Paper 2008-01-0961, 2008, doi:10.4271/2008-01-0961.
- Kösters, A., Karlsson, A., Oevermann, M., D’Errico G. et al., “RANS predictions of turbulent diffusion flames: comparison of a reactor and a flamelet combustion model to the well stirred approach,” Combust. Theor. Model. 19(1):81-106, 2015.
- Borghesi, G., Mastorakos, E., Devaud, C. B. and Bilger, R. W., “Modeling evaporation effects in conditional moment closure for spray autoignition”, Combust. Theor. Model. 15(5):725-752, 2011.
- Bolla, M., Farrace, D., Wright, Y. M., Boulouchos, K. et al. “Influence of turbulence-chemistry interaction for n-heptane spray combustion under diesel engine conditions with emphasis on soot formation and oxidation,” Combust. Theor. Model. 18(2):330-360, 2014.
- Bhattacharjee, S. and Haworth, D. C., “Simulations of transient n-heptane and n-dodecane spray flames under engine-relevant conditions using a transported PDF method,” Combust. Flame 160:2083-2102, 2013.
- Campbell, J., Gosman, A., and Hardy, G., "Analysis of Premix Flame and Lift-Off in Diesel Spray Combustion using Multi-Dimensional CFD," SAE Int. J. Engines 1(1):571-590, 2009, doi:10.4271/2008-01-0968.
- Egüz, U., Ayyapureddi, S., Bekdemir, C., Somers, B., et al., “Manifold resolution study of the FGM method for an igniting diesel spray,” Fuel 113:228-238, 2013.
- Bajaj, C., Ameen, M. and Abraham, J., “Evaluation of an unsteady flamelet progress variable model for auto-ignition and flame lift-off in diesel jets,” Combust. Sci. Technol., 185:454-472, 2013.
- Seidel, L., Moshammer, K., Wang, X., Zeuch, T. et al., “Comprehensive kinetic modeling and experimental study of a fuel-rich, premixed n-heptane flame,” Combust. Flame 162(5):2045-2058, 2015.
- LOGE AB. LOGEsoft, http://www.loge.se/Products/Products.html
- CD-adapco. Methodology - STAR-CD version 4.22, 2014.
- Perlman, C., Frojd, K., Seidel, L., Tuner, M. et al., "A Fast Tool for Predictive IC Engine In-Cylinder Modelling with Detailed Chemistry," SAE Technical Paper 2012-01-1074, 2012, doi:10.4271/2012-01-1074.
- Peters, N. “Laminar diffusion flamelet models in non-premixed combustion,” Prog. Energy Combust. Sci. 10:319-339, 1984.
- Lehtiniemi, H., Zhang, Y., Rawat, R., and Mauss, F., "Efficient 3-D CFD Combustion Modeling with Transient Flamelet Models," SAE Technical Paper 2008-01-0957, 2008, doi:10.4271/2008-01-0957.
- Olguin, H. Gutheil, E., “Influence of evaporation on spray flamelet structures,” Combust. Flame 161(4):987-996, 2014.
- Hollmann, C. and Gutheil, E., “Modeling of turbulent spray diffusion flames including detailed chemistry,” Proc. Combust. Inst. 26:1731-1738, 1996.
- Klimenko, A. Y. and Bilger, R. W., “Conditional moment closure for turbulent combustion,” Prog. Energy Combust. Sci. 25:595-687, 1999.
- Kronenburg, A. and Mastorakos, E. “The conditional moment closure model”, In: Echekki T. and Mastorakos E. (eds.): Turbulent combustion modeling - Advances, new trends and perspectives, Fluid mechanics and its applications 95, pp. 91-117, Springer, Dordrecht, 2011.
- Lehtiniemi, H., Borg, A., Mauss, F., “Conditional moment closure with a progress variable approach,” Paper MS 2-3, COMODIA, Fukuoka, Japan, 2012.
- Lehtiniemi, H., Mauss, F., Balthasar, M., Magnusson, I., “Modeling diesel spray ignition using detailed chemistry with a progress variable approach,” Combust. Sci. Technol. 178(10-11):1977-1997, 2006.
- Mauss, F., Netzell, K., Lehtiniemi, H., “Aspects of modeling soot formation in turbulent diffusion flames,” Combust. Sci. Technol. 178(10-11):1871-1885, 2006.
- O’Brien, E. E. and Jiang, T.-L., “The conditional scalar dissipation rate of an initially binary scalar in homogenous turbulence”, Phys. Fluids A 3(12):3121-3123, 1991.
- Scholtissek, A., Chan, W. L., Xu, H., Hunger, F., et al., “A multi-scale asymptotic scaling and regime analysis of flamelet equations including tangential diffusion effects for laminar and turbulent flames”, Combust. Flame 162(4):1507-1529, 2015.