R. V. Kolodnytska, K. Karimi, C. Crua, M. R. Heikal, E. M. Sazhina


A model for spray penetration in diesel engines is suggested. It is based on momentum conservation for a realistic mass flow rate transient profile. The modelling approach is based on tracking of centre-of-fuel-mass (COFM) of injected diesel fuel. The model was validated for Bosch and Delphi injectors using the data obtained at Sir Harry Ricardo automotive centre, University of Brighton, UK. The model is shown to produce a good agreement with the experimental data until major spray instability (such as cluster shedding). It has been found that the dispersion time (the adjustable model parameter) is increasing when injection pressure is decreasing. This follows the known tendency for spray breakup time.

Полный текст:

PDF (English)


Abramchuk F.I., Marchenko A.N., Razleytsev N.F. Modern diesel: the increasing of fuel economy and durability. Kiev. Technique; 1992. In Russian.

Crua C. Combustion Process in a Diesel Engine. PhD thesis. University of Brighton. 2002.

Karimi K. Characteri-sation of Multiple-Injection Diesel Sprays at Elevated Pressures and Temperatures. PhD thesis. University of Brighton. 2007.

Karimi K., Crua C., Heikal M.R. and Sazhina, E.M. Split injection strategy for diesel sprays: Experiment and modelling. In: PTNSS Kongres 2007, 20-23 May 2007, Kraków, Poland.

Karimi. K., Sazhina E.M., Abdelghaffar W. A ., Crua C., Cowell T., Heikal M.R., Gold M.R. 2006. Development in diesel spray characterisation and modelling. Thiesel 2006 Conference on Thermo-and Fluid Dynamic Processes in Diesel Engines.

Kolodnytska R.V., Karimi K., Crua C., Heikal M.R., Sazhina E.M. Modelling of Spray penetration in diesel engines by tracking centre of mass (COFM model). // X International Automotive Conference. Sevastopol, Ukraine. 2008. (In Press).

Roisman V.I, Araneo. L, Tropea. C, 2007. Effect of ambient pressure on penetration of a diesel fuel. International journal on multi-phase flow 33, pp. 904-920. 2007.

Sazhin S. Crua K, Kennaird D, Heical M. The initial stage of fuel spray penetration. Fuel 2003, 82: 875-885.

Sazhin S.S, Martynov S.B., Kristyadi T., Crua C., Heikal M.R. Diesel fuel spray penetration, heating, evaporation and ignition: modelling versus experimentation. (In press).

Yi Y, Reitz R.D. Modeling the primary breakup of high-speed jets. Atomization and Sprays. 2004; 14.


  • На текущий момент ссылки отсутствуют.