LES study on mixing and combustion in a Direct Injection Spark Ignition engine

被引:0
|
作者
Iafrate, Nicolas [1 ]
Robert, Anthony [1 ]
Michel, Jean-Baptiste [1 ]
Colin, Olivier [1 ]
Cuenot, Benedicte [2 ]
Angelberger, Christian [1 ]
机构
[1] IFP Energies Nouvelles, 1-4 Ave Bois Preau, F-92852 Rueil Malmaison, France
[2] CERFACS, 42 Ave Gaspard Coriolis, F-31000 Toulouse, France
关键词
LARGE-EDDY SIMULATION; CYCLIC VARIABILITY; FLAME PROPAGATION; MODEL; PREDICTION; VELOCITY; SPRAY;
D O I
10.2516/ogst/2018028
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Downsized spark ignition engines coupled with a direct injection strategy are more and more attractive for car manufacturers in order to reduce pollutant emissions and increase efficiency. However, the combustion process may be affected by local heterogeneities caused by the interaction between the spray and turbulence. The aim for car manufacturers of such engine strategy is to create, for mid-to-high speeds and mid-up-high loads, a mixture which is as homogeneous as possible. However, although injection occurs during the intake phase, which favors homogeneous mixing, local heterogeneities of the equivalence ratio are still observed at the ignition time. The analysis of the mixture preparation is difficult to perform experimentally because of limited optical accesses. In this context, numerical simulation, and in particular Large Eddy Simulation (LES) are complementary tools for the understanding and analysis of unsteady phenomena. The paper presents the LES study of the impact of direct injection on the mixture preparation and combustion in a spark ignition engine. Numerical simulations are validated by comparing LES results with experimental data previously obtained at IFPEN. Two main analyses are performed. The first one focuses on the fuel mixing and the second one concerns the effect of the liquid phase on the combustion process. To highlight these phenomena, simulations with and without liquid injection are performed and compared.
引用
收藏
页数:12
相关论文
共 50 条
  • [41] Effect of premixed ratio on combustion and emission characteristics in a spark ignition engine with hydrogen-ammonia direct injection
    Zuo, Qingsong
    Yang, Daliao
    Shen, Zhuang
    Chen, Wei
    Lu, Chun
    Chen, Lizhu
    Lei, Siyi
    FUEL, 2025, 393
  • [42] Design of combustion chamber program of two-stroke direct injection spark ignition engine based on the CFD
    Zhu, Cheng
    Yang, Hai-Qing
    Wang, Ming-Sheng
    Hangkong Dongli Xuebao/Journal of Aerospace Power, 2013, 28 (12): : 2737 - 2745
  • [43] Combustion and emission behavior of N-propanol as partially alternative fuel in a direct injection spark ignition engine
    Qian, Yong
    Guo, Jinjing
    Zhang, Yahui
    Tao, Wencao
    Lu, Xingcai
    APPLIED THERMAL ENGINEERING, 2018, 144 : 126 - 136
  • [44] Combustion and emission characteristics of an Acetone-Butanol-Ethanol (ABE) spark ignition engine with hydrogen direct injection
    Li, Decheng
    Wang, Haoyu
    Yu, Xiumin
    Yang, Hang
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (58) : 30145 - 30157
  • [45] Effect of Hydrogen-Rich Syngas Direct Injection on Combustion and Emissions in a Combined Fuel Injection-Spark-Ignition Engine
    Shang, Zhen
    Sun, Yao
    Yu, Xiumin
    He, Ling
    Ren, Luquan
    SUSTAINABILITY, 2023, 15 (11)
  • [46] Effects of injection timing on mixture formation, combustion, and emission characteristics in a n-butanol direct injection spark ignition engine
    Liu, Zengbin
    Zhen, Xudong
    Geng, Jie
    Tian, Zhi
    ENERGY, 2024, 295
  • [47] Analysis of the particulate emissions and combustion performance of a direct injection spark ignition engine using hydrogen and gasoline mixtures
    Zhao, Huayong
    Stone, Richard
    Zhou, Lei
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (10) : 4676 - 4686
  • [48] Octane Requirements of Lean Mixed-Mode Combustion in a Direct-Injection Spark-Ignition Engine
    Kim, Namho
    Vuilleumier, David
    Singh, Eshan
    Sjoeberg, Magnus
    ENERGY & FUELS, 2022, 36 (17) : 10096 - 10109
  • [49] Performance of Combustion and Emissions Characteristics of Ethanol Dual Injection Spark Ignition Engine
    Al-Muhsen, N. F. O.
    Hong, G.
    Ismail, F. B.
    INTERNATIONAL JOURNAL OF AUTOMOTIVE AND MECHANICAL ENGINEERING, 2021, 18 (03) : 9082 - 9093
  • [50] NUMERICAL STUDY ON THE COMBUSTION PROCESS OF A BIOGAS SPARK IGNITION ENGINE
    Carrera, Jose L. E.
    Riesco, Jose M. A.
    Martinez, Simon M.
    Sanchez, Fausto A. C.
    Gallegos, Armando M.
    THERMAL SCIENCE, 2013, 17 (01): : 241 - 254