CFD modeling of combustion of a natural gas Light-Duty Engine
Title
CFD modeling of combustion of a natural gas Light-Duty Engine
Subject
Natural gas
Combustion
Computational fluid dynamics
Thermal Engineering
Engines
Description
A CFD methodology to model natural gas Light-Duty SI (Spark-Ignition) engines is here proposed. The ignition stage is modeled by means of a simplified Eulerian spherical kernel approach (deposition model). Then, the fully turbulent flame propagation is reproduced by the Coherent Flamelet Model (CFM), where turbulence effects are taken into account by considering the flame surface density evolution. The laminar to turbulent flame transition is managed by the CFM model and it is assumed to occur when the flame radius reaches a fraction of the integral length scale. This methodology was validated with experimental data of in-cylinder pressure and heat release rate at different loads and speeds. 2018 The Authors. Published by Elsevier Ltd.
954-961
148
Publisher
73rd Conference of the Italian Thermal Machines Engineering Association, ATI 2018, September 12, 2018 - September 14, 2018
Date
2018
Contributor
Gianetti, G.
Sforza, L.
Lucchini, T.
D'Errico, G.
Soltic, P.
Rojewski, J.
Hardy, G.
Type
conferencePaper
Identifier
18766102
10.1016/j.egypro.2018.08.067
Collection
Citation
“CFD modeling of combustion of a natural gas Light-Duty Engine,” Lamar University Midstream Center Research, accessed May 18, 2024, https://lumc.omeka.net/items/show/24894.