In-cylinder flow design based on the representative scales of turbulence and premixed combustion

2019-01-2210

12/19/2019

Features
Event
2019 JSAE/SAE Powertrains, Fuels and Lubricants
Authors Abstract
Content
Dilution combustion with exhaust gas recirculation (EGR) has been applied for the improvement of thermal efficiency. In order to stabilize the high diluted combustion, it is important to form an appropriate turbulence in the combustion cylinder. Turbulent intensity needs to be strengthened to increase the combustion speed, while too strong turbulence causes ignition instability. In this study, the factor of combustion instability under high diluted conditions was analyzed by using single cylinder engine test, optical engine test and 3D CFD simulation. Finally, methodology of in-cylinder flow design is attempted to build without any function by taking into account the representative scales of turbulence and premixed combustion.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-2210
Pages
10
Citation
Mito, Y., Shiraishi, T., and Teraji, A., "In-cylinder flow design based on the representative scales of turbulence and premixed combustion," SAE Technical Paper 2019-01-2210, 2019, https://doi.org/10.4271/2019-01-2210.
Additional Details
Publisher
Published
Dec 19, 2019
Product Code
2019-01-2210
Content Type
Technical Paper
Language
English