Published 12 issues per year
ISSN Print: 1044-5110
ISSN Online: 1936-2684
Indexed in
COMPUTED AND MEASURED FUEL VAPOR DISTRIBUTION IN A DIESEL SPRAY
ABSTRACT
There is limited quantitative experimental data on fuel vapor concentrations in high-pressure vaporizing full-cone sprays injected into diesel engines. As a result, the accuracy of multidimensional models, which are routinely employed to compute such sprays, has not been quantitatively assessed. In this work, quantitative fuel vapor concentrations obtained from multidimensional computations of a diesel spray with three models are compared with measured concentrations in the vapor-phase portion downstream of liquid drop vaporization. The three models employed are a Lagrangian-drop Eulerian-fluid (LDEF) spray model, a gas jet model, and a virtual-liquid source (VLS) model. Comparison of the vapor fraction along the axial centerline during the transient development of the spray shows that the computed values are generally lower than the measured values, and the leading edge of the computed profiles shows shallower gradients of vapor fraction than in the measured spray. In the case of radial distribution, the peak values of measured and computed vapor fractions agree within 20% when the profiles are quasi-steady. The three models show similar agreement close to the orifice, but the LDEF model shows the better agreement farther downstream at quasi-steady state. During transient development, there is greater disagreement between the computed and measured profiles. The computed width of the vapor phase of the spray is generally larger than the measured one, although the half-widths show agreement within 10%. In general, the gas jet and VLS vapor fraction values are within 5% of each other at the centerline during transient development but differ more at the edge of the spray.
-
Bajaj Chetan, Ameen Muhsin, Abraham John, Evaluation of an Unsteady Flamelet Progress Variable Model for Autoignition and Flame Lift-Off in Diesel Jets, Combustion Science and Technology, 185, 3, 2013. Crossref
-
Pei Yuanjiang, Hawkes Evatt R., Kook Sanghoon, Transported probability density function modelling of the vapour phase of an n-heptane jet at diesel engine conditions, Proceedings of the Combustion Institute, 34, 2, 2013. Crossref
-
Bottone Francesco, Kronenburg Andreas, Gosman David, Marquis Andrew, The Numerical Simulation of Diesel Spray Combustion with LES-CMC, Flow, Turbulence and Combustion, 89, 4, 2012. Crossref
-
Bhattacharjee Subhasish, Haworth Daniel C., Simulations of transient n-heptane and n-dodecane spray flames under engine-relevant conditions using a transported PDF method, Combustion and Flame, 160, 10, 2013. Crossref
-
Pei Yuanjiang, Hawkes Evatt R., Kook Sanghoon, 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, 91, 2, 2013. Crossref
-
Cai Gary, Abraham John, Toward developing simplified models for diesel/biodiesel engine pollutant emissions, 2014 9th IEEE Conference on Industrial Electronics and Applications, 2014. Crossref
-
Pickett Lyle M., Manin Julien, Genzale Caroline L., Siebers Dennis L., Musculus Mark P. B., Idicheria Cherian A., Relationship Between Diesel Fuel Spray Vapor Penetration/Dispersion and Local Fuel Mixture Fraction, SAE International Journal of Engines, 4, 1, 2011. Crossref
-
Brands Thorsten, Hottenbach Peter, Koss Hans-Jürgen, Grünefeld Gerd, Pischinger Stefan, Adomeit Philipp, Quantitative Fuel-Air-Mixing Measurements in Diesel-Like Sprays Emanating from Convergent and Divergent Multi-Layer Nozzles, SAE International Journal of Engines, 5, 2, 2012. Crossref
-
Montanaro Alessandro, Migliaccio Marianna, Allocca Luigi, Fraioli Valentina, Lee Seong-Young, Zhang Anqi, Naber Jeffrey, Schlieren and Mie Scattering Visualization for Single-Hole Diesel Injector under Vaporizing Conditions with Numerical Validation, SAE Technical Paper Series, 1, 2014. Crossref
-
Ameen Muhsin M., Abraham John, RANS and LES Study of Lift-Off Physics in Reacting Diesel Jets, SAE Technical Paper Series, 1, 2014. Crossref
-
Pickett Lyle M., Genzale Caroline L., Bruneaux Gilles, Malbec Louis-Marie, Hermant Laurent, Christiansen Caspar, Schramm Jesper, Comparison of Diesel Spray Combustion in Different High-Temperature, High-Pressure Facilities, SAE International Journal of Engines, 3, 2, 2010. Crossref
-
Montanaro Alessandro, Allocca Luigi, Johnson Jaclyn, Lee Seong-Young, Naber Jeffrey, Zhang Anqi, Influence of the Nozzle Geometry of a Diesel Single-Hole Injector on Liquid and Vapor Phase Distributions at Engine-Like Conditions, SAE Technical Paper Series, 1, 2013. Crossref
-
Yen May, Abraham John, Computations of Soot and NO in Lifted Flames under Diesel Conditions, SAE Technical Paper Series, 1, 2014. Crossref
-
Pickett Lyle M., Manin Julien, Payri Raul, Bardi Michele, Gimeno Jaime, Transient Rate of Injection Effects on Spray Development, SAE Technical Paper Series, 1, 2013. Crossref
-
Salehi Fatemeh, Cleary Matthew J., Masri Assaad R., A Sensitivity Analysis for Sparse-Lagrangian MMC in Simulations of a n-dodecane Reacting Jet, SAE Technical Paper Series, 1, 2016. Crossref
-
Dahms Rainer N., Paczko Günter A., Skeen Scott A., Pickett Lyle M., Understanding the ignition mechanism of high-pressure spray flames, Proceedings of the Combustion Institute, 36, 2, 2017. Crossref
-
Salehi F., Cleary M.J., Masri A.R., Ge Y., Klimenko A.Y., Sparse-Lagrangian MMC simulations of an n-dodecane jet at engine-relevant conditions, Proceedings of the Combustion Institute, 36, 3, 2017. Crossref
-
Wehrfritz Armin, Kaario Ossi, Vuorinen Ville, Somers Bart, Large Eddy Simulation of n-dodecane spray flames using Flamelet Generated Manifolds, Combustion and Flame, 167, 2016. Crossref
-
Cai Gary, Abraham John, Multidimensional simulations of non-reacting and reacting diesel and biodiesel sprays, Energy, 119, 2017. Crossref
-
Payri Raul, Gimeno Jaime, Novella Ricardo, Bracho Gabriela, On the rate of injection modeling applied to direct injection compression ignition engines, International Journal of Engine Research, 17, 10, 2016. Crossref
-
Abraham John, Critical observations on the modeling of nonreacting and reacting diesel sprays, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 229, 11, 2015. Crossref
-
Zhou Xinyi, Li Tie, Lai Zheyuan, Wei Yijie, Modeling diesel spray tip and tail penetrations after end-of-injection, Fuel, 237, 2019. Crossref
-
Daly Shane, Cenker Emre, Pickett Lyle, Skeen Scott, The Effects of Injector Temperature on Spray Characteristics in Heavy-Duty Diesel Sprays, SAE International Journal of Engines, 11, 6, 2018. Crossref
-
Pei Yuanjiang, Mehl Marco, Liu Wei, Lu Tianfeng, Pitz William J., Som Sibendu, A Multicomponent Blend as a Diesel Fuel Surrogate for Compression Ignition Engine Applications, Journal of Engineering for Gas Turbines and Power, 137, 11, 2015. Crossref
-
Sula C., Grosshans H., Papalexandris M. V., Assessment of Droplet Breakup Models for Spray Flow Simulations, Flow, Turbulence and Combustion, 105, 3, 2020. Crossref
-
Gadalla Mahmoud, Kannan Jeevananthan, Tekgül Bulut, Karimkashi Shervin, Kaario Ossi, Vuorinen Ville, Large-Eddy Simulation of ECN Spray A: Sensitivity Study on Modeling Assumptions, Energies, 13, 13, 2020. Crossref
-
Poursadegh Farzad, Lacey Joshua S., Brear Michael J., Gordon Robert L., On the Fuel Spray Transition to Dense Fluid Mixing at Reciprocating Engine Conditions, Energy & Fuels, 31, 6, 2017. Crossref
-
Keser Robert, Battistoni Michele, Im Hong G., Jasak Hrvoje, A Eulerian Multi-Fluid Model for High-Speed Evaporating Sprays, Processes, 9, 6, 2021. Crossref
-
Yen May, Magi Vinicio, Abraham John, Modeling Soot Formation in Turbulent Jet Flames at Atmospheric and High-Pressure Conditions, Energy & Fuels, 32, 8, 2018. Crossref
-
Hadadpour Ahmad, Xu Shijie, Pang Kar Mun, Bai Xue-Song, Jangi Mehdi, Effects of pre-injection on ignition, combustion and emissions of spray under engine-like conditions, Combustion and Flame, 241, 2022. Crossref
-
Kim Namsu, Guahk Young Tae, Numerical modeling for local flame structure and pollutant formation in biodiesel and n-Dodecane spray jet flames, Fuel, 321, 2022. Crossref
-
Bao Hesheng, Maes Noud, Akargun Hayri Yigit, Somers Bart, Large Eddy Simulation of cavitation effects on reacting spray flames using FGM and a new dispersion model with multiple realizations, Combustion and Flame, 236, 2022. Crossref
-
Liu Xinlei, Allehaibi Moaz, Im Hong G., Investigation of the Engine Combustion Network Spray A Characteristics using Eulerian and Lagrangian Models, SAE Technical Paper Series, 1, 2022. Crossref
-
Colmenares F. J.D., Ameen M.M., Patel S.S., Large-eddy simulation of non-vaporizing sprays using the spectral-element method, International Journal of Multiphase Flow, 154, 2022. Crossref
-
Qin Wenjin, Lu Dengbiao, Xu Lihui, Spray Combustion Characteristics of Single/Multicomponent Surrogate Fuel for Aviation Kerosene, Journal of Engineering for Gas Turbines and Power, 144, 3, 2022. Crossref
-
Fathi Mohamad, Hickel Stefan, Roekaerts Dirk, Large eddy simulations of reacting and non-reacting transcritical fuel sprays using multiphase thermodynamics, Physics of Fluids, 34, 8, 2022. Crossref