Title: Diesel fuel spray penetration, heating, evaporation and ignition: modelling vs. experimentation

Authors: S.S. Sazhin, S.B. Martynov, T. Kristyadi, C. Crua, M.R. Heikal

Addresses: Sir Harry Ricardo Laboratories, Internal Combustion Engines Group, School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK. ' Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK. ' Mechanical Engineering Department, National Institute of Technology of Bandung, Jl. PHH Mustofa no. 23, Bandung, Indonesia. ' Sir Harry Ricardo Laboratories, Internal Combustion Engines Group, School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK. ' Sir Harry Ricardo Laboratories, Internal Combustion Engines Group, School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK

Abstract: The modified WAVE droplet breakup model, taking into account the transient processes during spray injection, the Effective Thermal Conductivity (ETC) liquid phase model, the gas phase model suggested by Abramzon and Sirignano, and the customised version of the Shell autoignition model have been implemented into the KIVA 2 CFD code. The observed Diesel spray tip penetration and Sauter Mean Radii show much better agreement with the prediction of the modified WAVE model compared with other droplet breakup models. The difference in the autoignition delay times predicted using the Infinite Thermal Conductivity (ITC) and ETC models is important for practical computations.

Keywords: diesel fuel spray; droplet breakup models; heating; evaporation; autoignition; ignition; modelling; experimentation; spray injection; effective thermal conductivity; ETC liquid phase; gas phase; CFD; computational fluid dynamics; infinite thermal conductivity; ITC; diesel engines.

DOI: 10.1504/IJESMS.2008.018845

International Journal of Engineering Systems Modelling and Simulation, 2008 Vol.1 No.1, pp.1 - 19

Published online: 19 Jun 2008 *

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