2010
DOI: 10.2516/ogst/2009062
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A Comprehensive Model for Liquid Film Boiling in Internal Combustion Engines

Abstract: Résumé -Un modèle complet pour l'ébullition de film liquide dans les moteurs à combustion interne -Dans cet article, les principaux processus physiques, régissant les régimes d'ébullition nucléée et de transition d'un film liquide, ont été examinés à partir des observations expérimentales disponibles dans la littérature. Les tendances physiques observées, ont été utilisées, pour développer un modèle phénoménologique complet pour l'ébullition de film liquide (LFB). Celui-ci permet le calcul de sa vaporisation, … Show more

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Cited by 25 publications
(33 citation statements)
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“…In this work, both an experimental and a numerical investigation have been carried out in order to improve the understanding and the modelling of the vaporization of liquid deposits in the boiling regimes. The liquid film sub-models previously developed by the authors [1][2][3][4][5] using a RANS approach have been improved and implemented in the Large-Eddy Simulation (LES) code AVBP [6]. In particular, this work extends the validity of the Liquid Film Boiling (LFB) model [5] for dispersed liquid films or tiny deposits that may be formed when a dilute spray impinges a wall.…”
Section: Introductionmentioning
confidence: 96%
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“…In this work, both an experimental and a numerical investigation have been carried out in order to improve the understanding and the modelling of the vaporization of liquid deposits in the boiling regimes. The liquid film sub-models previously developed by the authors [1][2][3][4][5] using a RANS approach have been improved and implemented in the Large-Eddy Simulation (LES) code AVBP [6]. In particular, this work extends the validity of the Liquid Film Boiling (LFB) model [5] for dispersed liquid films or tiny deposits that may be formed when a dilute spray impinges a wall.…”
Section: Introductionmentioning
confidence: 96%
“…as well as on gravity, gas pressure, liquid flow rate, etc. (see [5] for a complementary bibliographical review. These critical temperatures may also be determined experimentally from the boiling or lifetime curve of a droplet as depicted in Figure 4 obtained by measuring the total time that it takes to a droplet to completely evaporate after it has been gently deposited on a hot wall [12] : Regime I, complete wetting regime (Tw < Tsat) The sprays, impinging a wall having a Tw smaller than Tsat, always form a liquid film which evaporates slowly.…”
Section: Methodsmentioning
confidence: 99%
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