Large-Eddy Simulations of a Speed Transient Performed on a Motored Gasoline Engine 2017-24-0028
This study presents a preliminary application of Large-Eddy Simulations (LES) of a speed transient performed on a motored single-cylinder engine. The numerical setup follows a methodology which has been validated and optimized for stabilized operating points in previous work, and adapted to run a speed transient of 31 cycles, from 1000 to 1800 rpm. Analysis of the results contributes to characterize the impact of the transient on the engine charge, tumble motion and velocity distribution. These simulations, which have never been performed in the past (to the best of our knowledge), represent a decisive step towards modeling and understanding transient in GDI engines, and particularly their impact on soot particle emissions in real driving conditions.
Citation: Poubeau, A., Jay, S., Robert, A., Nicoud, E. et al., "Large-Eddy Simulations of a Speed Transient Performed on a Motored Gasoline Engine," SAE Technical Paper 2017-24-0028, 2017, https://doi.org/10.4271/2017-24-0028. Download Citation
Author(s):
Adèle Poubeau, Stephane Jay, Anthony Robert, Edouard Nicoud, Christian Angelberger
Affiliated:
IFP Energies Nouvelles, Institut Carnot IFPEN TE
Pages: 10
Event:
13th International Conference on Engines & Vehicles
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Particulate matter (PM)
Simulation and modeling
Emissions
Logistics
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