Numerical analysis of injector flow and spray characteristics from diesel injectors using fossil and biodiesel fuels

Michele Battistoni and Carlo Nazareno Grimaldi

Applied Energy, 2012, vol. 97, issue C, 656-666

Abstract: The aim of the paper is the comparison of the injection process with two fuels, a standard diesel fuel and a pure biodiesel, methyl ester of soybean oil. Multiphase cavitating flows inside injector nozzles are calculated by means of unsteady CFD simulations on moving grids from needle opening to closure, using an Eulerian–Eulerian two-fluid approach which takes into account bubble dynamics. Afterward, spray evolutions are also evaluated in a Lagrangian framework using results of the first computing step, mapped onto the hole exit area, for the initialization of the primary breakup model.

Keywords: Biodiesel spray; Cavitation; Nozzle flow; Eulerian multiphase flow; Primary breakup; Coupled simulations (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (20)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:97:y:2012:i:c:p:656-666

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DOI: 10.1016/j.apenergy.2011.11.080

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