Naslov
Modelling the spray and combustion processes in diesel engine using coupled Euler-Eulerian and Euler-Lagrangian approach

Autori
Vujanović, Milan ; Petranović, Zvonimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Digital Proceedings of 10th Conference on Sustainable Development of Energy, Water and Environment Systems, 2015 / Ban, Marko, et al. - Zagreb, 2015

ISBN
0110-1-0110-16

Skup
10th Conference on Sustainable Development of Energy, Water and Environment Systems

Mjesto i datum
Dubrovnik, Hrvatska, 27.09.2015. - 02.10.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CFD modelling; Eulerian; Lagrangian; coupling; combustion

Sažetak
The focus of this paper is to show that the existing and developed models are capable for describing spray formation, combustion and pollutant formation processes. The Euler- Eulerian approach was used for the spray modelling where the mathematical models of fuel jet disintegration and droplet evaporation are used. Spray combustion is modelled using the common Euler-Lagrangian approach. The coupling of two approaches have been performed by running simultaneous computations on separate computational domains with constantly exchanging mass, enthalpy and momentum sources. This research outlines the capability employing the coupled approach. The calculated results were compared with the available experimental data. It is concluded that the pressure and temperature evolution, combustion process and the emissions trends are well described using this approach. The coupled simulations could be used in further engine development retaining the high CPU efficiency taken from the Euler- Lagrangian simulations with an increased solution accuracy in the near-nozzle region employing the Euler-Eulerian approach.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA