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

Vujanović, Milan and Petranović, Zvonimir (2015) Modelling the spray and combustion processes in diesel engine using coupled Euler-Eulerian and Euler-Lagrangian approach. = Modelling the spray and combustion processes in diesel engine using coupled Euler-Eulerian and Euler-Lagrangian approach. In: 10th Conference on Sustainable Development of Energy, Water and Environment Systems, 27.09.2015.-02.10.2015., Dubrovnik, Republika Hrvatska.

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Modelling-the-spray-and-combustion-processes-in-diesel-engine-using-couple-Euler-Eulerian-and-Euler-Lagrangian-approach.pdf - Accepted Version Jezik dokumenta:English

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Abstract

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.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): CFD modelling, Eulerian, Lagrangian, coupling, combustion
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: No
Indexed in Current Contents: No
Date Deposited: 14 Apr 2016 11:10
Last Modified: 06 Sep 2017 13:00
URI: http://repozitorij.fsb.hr/id/eprint/5639

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