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A RECENT EULERIAN–LAGRANGIAN CFD METHODOLOGY FOR MODELING DIRECT INJECTION DIESEL SPRAYS

JOSÉ M. DESANTES

CMT-Motores Térmicos, Universitat Politècnica de València, Valencia 46022, Spain

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SERGIO HOYAS

CMT-Motores Térmicos, Universitat Politècnica de València, Valencia 46022, Spain

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ANTONIO GIL

CMT-Motores Térmicos, Universitat Politècnica de València, Valencia 46022, Spain

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KHUONG ANH DUNG

CMT-Motores Térmicos, Universitat Politècnica de València, Valencia 46022, Spain

Lab Fluid Dynamics and Heat Transfer, University of Valenciennes and Hainaut-Cambresis (UVHC), Le Mont Houy, F59313 Valenciennes, Cedex 9, France

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FRÉDÉRIC RAVET

Renault, 1 Avenue du Golf 78288, Guyancourt, France

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https://doi.org/10.1142/S0219876213430123Cited by:3 (Source: Crossref)

Abstract

The global objective of this work is to show the capabilities of the Eulerian–Lagrangian spray atomization (ELSA) model for the simulation of Diesel sprays in cold starting conditions. Our main topic is to focus in the analysis of spray formation and its evolution at low temperature 255 K (-18°C) and nonevaporative conditions. Spray behavior and several macroscopic properties, included the liquid spray penetration, and cone angle are also characterized. This study has been carried out using different ambient temperature and chamber pressure conditions. Additionally, the variations of several technical quantities, as the area coefficient and effective diameter are also studied. The results are compared with the latest experimental results in this field obtained in our institute. In the meantime, we also compare with the normal ambient temperature at 298 K (25°C) where the numerical validation of the model has shown a good agreement.

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