Title: Evaluation of the Eulerian-Lagrangian spray atomisation (ELSA) in spray simulations

Authors: Sergio Hoyas; J.M. Pastor; Dung Khuong-Anh; Juan Manuel Mompó-Laborda; Frederic Ravet

Addresses: CMT – Motores Térmicos, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain. ' CMT – Motores Térmicos, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain. ' CMT – Motores Térmicos, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain. ' CMT – Motores Térmicos, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain. ' Renault, 1 Avenue du Golf 78288, Guyancourt, France

Abstract: Many approaches have been used to simulate the spray structure especially in modelling fuel sprays, i.e., Eulerian, Lagrangian, Lagrangian-Eulerian, Eulerian-Eulerian and Eulerian-Lagrangian approaches. The present study uses an Eulerian-Lagrangian spray atomisation (ELSA) method which is an integrated model for capturing the whole spray evolution starting directly from injector nozzle till the end. Our goal in this study is to evaluate the ELSA model which is implementing into the commercial software Star-CD, for numerical modelling of diesel sprays. There are two key studies in these validations, at first we examine the turbulent parameters through the three different scenarios and then we study mesh dependency. The results show in form of liquid penetrations, droplet velocity, and axial velocity profiles. All numerical results are compared with experimental data from our research institute, CMT-Motores Térmicos.

Keywords: spray penetration; droplet velocity; axial velocity; fuel injection; Eulerian-Lagrangian spray atomisation; ELSA; turbulence; simulation; fuel sprays; numerical modelling; diesel sprays.

DOI: 10.1504/IJVSMT.2011.044224

International Journal of Vehicle Systems Modelling and Testing, 2011 Vol.6 No.3/4, pp.187 - 201

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 13 Dec 2011 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article