Turbulence and Residual Gas Effects on Mixing, Combustion, and Emissions in Split Injection of Gaseous Fuel 2007-01-0146
Combustion and pollutant formation in split injection may be influenced by interaction between fuel pulses. Specifically, the interest here is in two aspects of that interaction: turbulence effects and residual gas effects. The objective of this work is to understand these two aspects of the interaction between multiple fuel pulses, in isolation from other effects, while employing widely accepted computational methods. Residual gas effects on combustion in the jets are studied using two combustion models: a characteristic time combustion model within Reynolds-averaged Navier-Stokes simulations and an interactive flamelet model. Findings indicate that dilution and thermal effects of residual gases are dominant. Regarding the turbulence effects, this work does not predict mixing enhancement due to turbulence from prior injection pulses. Rather, the jet is accelerated by the bulk flow field established by prior injections.
Citation: Anders, J. and Abraham, J., "Turbulence and Residual Gas Effects on Mixing, Combustion, and Emissions in Split Injection of Gaseous Fuel," SAE Technical Paper 2007-01-0146, 2007, https://doi.org/10.4271/2007-01-0146. Download Citation
Author(s):
J. W. Anders, J. Abraham
Affiliated:
School of Mechanical Engineering, Purdue University
Pages: 13
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Multi-Dimensional Engine Modeling, 2007-SP-2125
Related Topics:
Combustion and combustion processes
Turbulence
Gases
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »