Pregled bibliografske jedinice broj: 386329
Enhancement and validation of an Eulerian Eulerian approach for Diesel Sprays
Enhancement and validation of an Eulerian Eulerian approach for Diesel Sprays // CD Proceedings of 22nd European Conference on Liquid Atomization and Spray Systems ILASS 2008, Como Lake, Italija
Como, Italija, 2008. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 386329 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Enhancement and validation of an Eulerian Eulerian approach for Diesel Sprays
(Enhancement and validation of an Eulerian-Eulerian approach for Diesel Sprays)
Autori
Vujanović, Milan ; Edelbauer, Wilfried ; Von Berg, Eberhard ; Tatschl, Reinhard ; Duić, Neven
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
CD Proceedings of 22nd European Conference on Liquid Atomization and Spray Systems ILASS 2008, Como Lake, Italija
/ - , 2008
Skup
22nd European Conference on Liquid Atomization and Spray Systems ILASS 2008
Mjesto i datum
Como, Italija, 08.09.2008. - 10.09.2008
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
CFD; Diesel spray; Eulerian-Eulerian model
Sažetak
Turbulent sprays in computational fluid dynamics calculations (CFD) of internal combustion engines are usually modelled based on the most commonly used Eulerian-Lagrangian method, also known as the Discrete Droplet Model (DDM). This method is especially suitable for the modelling of dilute sprays, but has some disadvantages near nozzle region with respect to insufficient description of the physics in a dense spray, where the bulk liquid phase disintegrates into droplets. This can be improved by stronger physical coupling of the gas and the liquid phase in the near nozzle region using an Eulerian-Eulerian multiphase method. This method provides a more accurate description of the physics in the dense spray region by treating each droplet size class as completely separate phase and solving conservation equations for each of them. The focus of this paper is therefore on the application and validation of the Eulerian-Eulerian spray model. In the standard approach the model deals with fixed droplet size classes, while in an advanced model approach variable size classes are applied. The work presented below on diesel sprays establishes a validated modelling concept that can be applied with confidence for accurate calculation of the dense liquid spray. Several simulations of high pressures diesel injections have been carried out, using AVL’ s CFD code FIRE, and compared with experimental data.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
120-1201918-1920 - Racionalno skladištenje energije za održivi razvoj energetike (Duić, Neven, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
