Modelling spray and combustion processes in diesel engine by using the coupled Eulerian-Eulerian and Eulerian-Lagrangian method

Vujanović, Milan and Petranović, Zvonimir and Wilfried, Edelbauer and Duić, Neven (2016) Modelling spray and combustion processes in diesel engine by using the coupled Eulerian-Eulerian and Eulerian-Lagrangian method. = Modelling spray and combustion processes in diesel engine by using the coupled Eulerian-Eulerian and Eulerian-Lagrangian method. Energy conversion and management, 125. pp. 15-25. ISSN 0196-8904. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2016). Točan broj autora: 4.

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Abstract

The focus of this paper is to demonstrate that the existing and developed models, within the coupled approach, are capable for describing spray, combustion and pollutant formation processes. The EulerianEulerian (EE) method, multi-continuum model, is used for spray modelling including the fuel jet disintegration and droplet evaporation processes. The combustion process is modelled by employing the Eulerian-Lagrangian (EL) discrete droplet model (DDM). The EE-EL coupling has been performed by running simultaneous simulations on a separate computational domains with constantly exchanging mass, enthalpy and momentum sources. The calculated results were compared to the available experimental data and to the previously published results. It is concluded that the pressure and temperature traces, energy conversion and the emission trends are well described and a good agreement to the experimental data is observed. The advantage of the presented approach is retaining a high CPU efficiency, characteristic for the EL method, with an increased solution accuracy in the near-nozzle region characteristic for the EE method.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): CFD; Eulerian Lagrangian; spray; coupling; combustion; emissions
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 5 (19.03.2018.)
Quartiles: Q1 (2016)
Date Deposited: 28 Feb 2017 14:46
Last Modified: 19 Mar 2018 08:22
URI: http://repozitorij.fsb.hr/id/eprint/5381

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