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Influence of Nozzle Eccentricity on Spray Structures in Marine Diesel Sprays
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 04, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Large two-stroke marine Diesel engines have special injector geometries, which differ substantially from the configurations used in most other Diesel engine applications. One of the major differences is that injector orifices are distributed in a highly non-symmetric fashion affecting the spray characteristics. Earlier investigations demonstrated the dependency of the spray morphology on the location of the spray orifice and therefore on the resulting flow conditions at the nozzle tip. Thus, spray structure is directly influenced by the flow formation within the orifice. Following recent Large Eddy Simulation resolved spray primary breakup studies, the present paper focuses on spray secondary breakup modelling of asymmetric spray structures in Euler-Lagrangian framework based on previously obtained droplet distributions of primary breakup. Firstly, the derived droplet distributions were assigned via user coding to RANS 3D-CFD simulation of nozzle bore geometries having 0.0, 0.4 and 0.8 normalized eccentricities. Spray secondary breakup then calculated by using the KH-RT breakup model. The simulations compared to a widely used industrial methodology and validated against experimental measurements performed in a unique Spray Combustion Chamber. Furthermore, effects of nozzle eccentricity were assessed under non-reactive and reactive conditions using a computationally efficient combustion solver. The methodology was found to be promising for future implementation of droplet mapping techniques under marine diesel engine conditions.
CitationNagy, I., Matrisciano, A., Lehtiniemi, H., Mauss, F. et al., "Influence of Nozzle Eccentricity on Spray Structures in Marine Diesel Sprays," SAE Technical Paper 2017-24-0031, 2017, https://doi.org/10.4271/2017-24-0031.
Data Sets - Support Documents
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- Schmid A., Rotz B. v., Schulz R., Herrmann K., Weisser G., Bombach R., “Influence of nozzle hole eccentricity on spray morphology“, ILASS 2013.
- Yokobe, S., Oda, T., Ohsawa, K., Sumi, T. et al., "Spray Characteristics and Inside Flow of a Marine Diesel Injector," SAE Technical Paper 2015-01-1838, 2015, doi:10.4271/2015-01-1838.
- Habchi C., Gillet N., Velghe A., Bohbot J., Schmid A., von Rotz B., Herrmann K., “On the role of Cavitation in Marine Large Diesel injector: Numerical investigation of nozzle orifices eccentricity”, ILASS - Europe 2014, Bremen, Germany, 8-10 Sep. 2014.
- Schmidt D.P., Corradini M.L., “The internal flow of diesel fuel injector nozzles: a review”. International Journal of Engine Research. 2001 Feb. 1;2(1):1-22.
- Som S., Aggarwal S.K., El-Hannouny E.M. and Longman D.E., “Investigation of Nozzle Flow and Cavitation Characteristics in a Diesel Injector, Journal of Engineering for Gas Turbines and Power 132(4), April 2010.
- Nagy I.G., Schmid A., Hensel S., Dahnz C., “Computational analysis of spray primary breakup in 2-stroke marine diesel engines with different nozzle layouts”, ICLASS 2015, Tainan, Taiwan, August 23-27. 2105.
- Schulz R., Hensel S., Herrmann K., Schmid A. and von Rotz B., “Development of Spray and Combustion Simulation Tools and Application to Large Two-Stroke Diesel Engine Combustion Systems”, CIMAC Paper no.:259, Shanghai, China, 2013.
- Nagy I.G., Schmid A. and Kaiktsis L., “Characterization of asymmetric structure of large marine diesel engine sprays”, First ECCO-MATE Conference, Lund, Sweden, June 6-10. 2016.
- Pei, Y.J., Hawkes E.R., and Kook S., A Comprehensive Study of Effects of Mixing and Chemical Kinetic Models on Predictions of n-heptane Jet Ignitions with the PDF Method. Flow Turbulence and Combustion, 2013. 91(2): p. 249-280.
- Bolla, M., Srna, A., Wright, Y., Von Rotz, B. et al., "Influence of Injector Diameter (0.2-1.2 mm range) on Diesel Spray Combustion: Measurements and CFD Simulations," SAE Technical Paper 2014-01-1419, 2014, doi:10.4271/2014-01-1419.
- Bolla, M., Wright, Y., Bulochos, K., “Application of a Conditional Moment Closure Combustion model to a large two-stroke marine Diesel engine reference experiment” COMODIA 2013.
- 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.
- Herrmann K., Schulz R., Weisser G., “Development of a reference experiment for a large diesel engine combustion system optimization”, CIMAC Congress Paper no.:98, Vienna 2007.
- von Rotz, B., Herrmann, K., and Boulouchos, K., "Experimental Investigation on the Characteristics of Sprays Representative for Large 2-Stroke Marine Diesel Engine Combustion Systems," SAE Technical Paper 2015-01-1825, 2015, doi:10.4271/2015-01-1825.
- Han J. and Tryggvason G., “Secondary breakup of axisymmetric liquid drops. I. Acceleration by a constant body force”, Physics of Fluids Vol.11, No.12., 1999.
- Hensel S., Herrmann K., Schulz R. and Weisser G., “Numerical analysis and statistical description of the primary breakup in fuel nozzles of large two stroke engines for the application in CFD engine simulations”, COMODIA 2012.
- Schneider Bruno M., “Experimentelle Untersuchung zur Spraystruktur in transienten, verdampfenden und nicht verdampfenden Brennstoffstrahlen unter Hochdruck, Doctorate Dissertation ETH Zürich, 2013.
- Baumgarten C., “Mixture formation in internal combustion engines”, Heat and Mass Transfer, Springer, New York,2003.
- Patterson, M. and Reitz, R., "Modeling the Effects of Fuel Spray Characteristics on Diesel Engine Combustion and Emission," SAE Technical Paper 980131, 1998, doi:10.4271/980131.
- Befrui, B., D'Onofrio, M., Markle, L., and Spiekermann, P., "Coupled LES Jet Primary Breakup - Lagrangian Spray Simulation of a GDi Multi-Hole Fuel Injector," SAE Int. J. Fuels Lubr. 8(1):179-189, 2015, doi:10.4271/2015-01-0943.
- Star-CD Methodology version 4.26, Siemens-CD-adapco,2016
- Reitz, R. and Diwakar, R., "Structure of High-Pressure Fuel Sprays," SAE Technical Paper 870598, 1987, doi:10.4271/870598.
- Peters, N., Turbulent Combustion. Cambridge University Press, Cambridge, 2000.
- Lehtiniemi, H., Zhang, Y., Rawat, R., Mauss, F., “Efficient 3-D combustion modeling with transient flamelet models,” SAE Technical Paper 2008-01-0957, 2008.
- 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.
- 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.
- Hollmann, C. and Gutheil, E., “Modeling of turbulent spray diffusion flames including detailed chemistry,” Proc. Combust. Inst. 26:1731-1738, 1996.
- Peters, N. “Laminar diffusion flamelet models in non-premixed combustion,” Prog. Energy Combust. Sci. 10:319-339, 1984.
- Senecal P., Pomraning E., Richards K. and Som S., Proceedings of the ASME 2012 Internal Combustion Engine Division Fall Technical Conference, Vancouver, BC, Canada, September 2012.
- Abani N., et al., "Reduction of numerical parameter dependencies in diesel spray models," Journal of Engineering for Gas Turbines and Power-Transactions of the ASME, vol. 130, May 2008.
- Bravo L., Kurman M., Kweon C., Wijeyakulasuriya S. and Senecal P. K., “Lagrangian Modeling of Evaporating Sprays at Diesel Engine Conditions: Effects of Multi-Hole Injector Nozzles With JP-8 Surrogates”, ILASS Americas 26th Annual Conference on Liquid Atomization and Spray Systems, Portland, OR, May 2014
- Brulatout J., Garnier F., Mounaım-Rousselle C. and Seers P., “Calibration strategy of diesel-fuel spray atomization models using a design of experiment method”, International Journal of Engine Research, doi:10.1177/14680874156110030,2015.
- Ahmed, S. S., Mauss, F., Moréac, G., Zeuch, T., “A comprehensive and compact n-heptane oxidation model derived using chemical lumping”, Phys. Chem. Chem. Phys., 9, 1107-1126, 2007