GDI Ammonia Spray Numerical Simulation by Means of OpenFOAM 2023-01-0311
The goal of mitigating climate change has driven research to the use of carbon-free energy sources. In this regards, green hydrogen appears as one of the best options, however, its storage remains difficult and expensive. Indeed, there is room to consider the use of ammonia (an efficient hydrogen carrier) directly as a fuel for internal combustion engines or gas turbines. Currently, there are very few works in the literature describing liquid ammonia sprays, both from experimental and modeling point of view, and especially dealing with flash-boiling conditions. In this research work, the direct injection ammonia spray is modeled with the Lagrangian particle approach, building up a numerical model within the OpenFOAM framework, for transient analyses using the U-RANS approach. An evaluation of main spray modeling parameters is carried out to build a predictive Lagrangian model for ammonia based on the comparison with experiments in terms of liquid and vapor tip penetration, local values of Sauter mean diameter and global spray morphology. In this work, results of CFD simulations of ammonia spray and the comparison with experimental data are presented for different conditions, aiming to present a comparison between flash boiling and non-flashing regimes.
Citation: Pandal, A., Zembi, J., Battistoni, M., Hespel, C. et al., "GDI Ammonia Spray Numerical Simulation by Means of OpenFOAM," SAE Technical Paper 2023-01-0311, 2023, https://doi.org/10.4271/2023-01-0311. Download Citation
Author(s):
Adrian Pandal, Jacopo Zembi, Michele Battistoni, Camille Hespel, Ronan Pele, Pierre BREQUIGNY, Christine Rousselle
Affiliated:
Universidad de Oviedo, Universita degli Studi di Perugia, Universite D'Orleans
Pages: 10
Event:
WCX SAE World Congress Experience
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Mathematical models
Computer simulation
Gas turbines
Fuel injection
Computational fluid dynamics
Simulation and modeling
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »