Implementation and validation of a Lagrangian spray model using experimental data of the ECN Spray G injector

NIGRO, NORBERTO M.; AGUERRE, HORACIO J.

COMPUTERS & FLUIDS

PERGAMON-ELSEVIER SCIENCE LTD

Año: 2019 vol. 190 p. 30 - 48

0045-7930

This work presents a Lagrangian-based spray model and its implementation in the context of the Finite Volume Method. Gas and liquid phases are coupled using an implicit strategy which is based on a splitting of the temporal derivatives of the gaseous phase. The atomization processes are represented with a hybrid strategy which combines the Huh?Gosman, Kelvin?Helmholtz and Rayleigh?Taylor models. A sensitivity analysis of these models is proposed where the influence of specific parameters is evaluated. To calibrate the model, the numerical results are compared with experimental data of the Engine Combustion Network Spray G injector. An acceptable performance of the numerical results is obtained promoting the current numerical strategy as a robust and reliable option to simulate the Spray G and others multi-hole injectors. The results of this work allow a better understanding of the influence of the model parameters on the global spray development which is valuable and currently scarce information to aid to future improvements.