Naslov
Influence of child droplet modelling on spray behavior in the Eulerian multiphase approach

Autori
Pađen, Ivan ; Petranović, Zvonimir ; Vujanović, Milan ; Cerinski, Damijan

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

Izvornik
Digital Proceedings of the 3rd SEE SDEWES Conference / Ban, Marko [et al.] - Zagreb, 2018

Skup
3rd South East European Conference on Sustainable Development of Energy, Water and Environment System Conference (SEE SDEWES 2018)

Mjesto i datum
Novi Sad, Srbija, 30.06.2018. - 04.07.2018

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CFD, Modelling, Spray, Secondary atomisation

Sažetak
Injectors used in Diesel engines have to be capable of introducing a high amount of liquid fuel in a short period into the combustion chamber through a small diameter nozzle. The rapid injection is performed through the common rail systems operating under the high-pressure conditions. As a result, the turbulent and aerodynamic forces act upon the fuel jet surface leading to the jet atomization - the process known as the primary breakup. The newly created droplets and unstable ligaments further disintegrate due to aerodynamic instabilities into smaller droplets in a process called the secondary breakup. For the droplets generated by the secondary atomization, different models can be employed. This research is conducted to investigate the influence of such models for child droplet production on the general spray behaviour. The results were compared to the experimental data including droplet size distribution, Sauter mean diameter, spray tip penetration and spray angle. For all simulations, a computational fluid dynamics software AVL FIRE™ was used.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA