Volume 34 Issue 9
Sep.  2019
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Numerical simulation of stratified scavenging two-stroke gasoline engine[J]. Journal of Aerospace Power, 2019, 34(9): 2001-2009. doi: 10.13224/j.cnki.jasp.2019.09.017
Citation: Numerical simulation of stratified scavenging two-stroke gasoline engine[J]. Journal of Aerospace Power, 2019, 34(9): 2001-2009. doi: 10.13224/j.cnki.jasp.2019.09.017

Numerical simulation of stratified scavenging two-stroke gasoline engine

doi: 10.13224/j.cnki.jasp.2019.09.017
  • Received Date: 2019-01-26
  • Publish Date: 2019-09-28
  • A three-dimensional model of stratified scavenging engine was established to study the scavenging characteristics and working mechanism of stratified scavenging engine, then three-dimensional CFD software Fluent was used to simulate and analyze the fluid structure with or without stratified scavenging system at rated speed, and the boundary conditions required for its calculation were obtained by one-dimensional simulation calculation of the engine. Results showed that, the stratified scavenging engine used pure air to form a stratification between the fresh mixture and the exhaust gas during operation, a part of the scavenging loss was taken by the pure air, which reduced 15% of unburned hydrocarbon and improved the fuel economy of the engine; the stratified scavenging engine and the non-stratified scavenging engine had a scavenging efficiency of 75%, without significant effect on the scavenging efficiency. The results of the research can provide reference for the design of stratified scavenging engines.

     

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  • [1]
    王思奇.小型航模二冲程煤油发动机缸内直喷技术研究[D].南京:南京航空航天大学,2017.
    WANG Siqi.Research on GDI technology of small model two-stroke kerosene engine[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2017.(in Chinese)
    [2]
    BLAIR G P.Reduction of fuel consumption of a spark ignition two-stroke cycle engine[R].Society of Automotive Engineers,SAE Technical Paper 1983-830093,1983.
    [3]
    史宗庄,马其成,崔国起,等.采用空气先导式分层扫气方法降低小型二冲程汽油机燃油消耗的试验研究[J].内燃机学报,1998,16(4):497-504.SHI Zongzhuang,MA Qicheng,CUI Guoqi,et al.An investigation into reduction of fuel consumption of small two-stroke gasoline engine with air leading type stratified scavenging method[J].Transactions of Csice,1998,16(4):497-504.(in Chinese)
    [4]
    朱成,杨海青,汪明生.基于CFD分析的二冲程发动机直喷燃烧室方案设计[J].航空动力学报,2013,28(12):2737-2745.ZHU Cheng,YANG Haiqing,WANG Mingsheng.Design of combustion chamber program of two-stroke direct injection spark ignition engine based on the CFD[J].Journal of Aerospace Power,2013,28(12):2737-2745.(in Chinese)
    [5]
    陶晓雷.二冲程缸内直喷发动机整机热负荷分析[D].南京:南京航空航天大学,2014.TAO Xiaolei.Thermal load analysis of two-stroke direct fuel injection engine[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2014.(in Chinese)
    [6]
    MC ELLIGOTT S,DOUGLAS R,KEE R J.Stratified scavenging applied to a small capacity two-stroke scooter for the reduction of fuel consumption and emissions[R].Society of Automotive Engineers,SAE Technical Paper 1999-01-3271,1999.
    [7]
    YOUSHIDA Y,UENOYAMA K,KAWAHARA Y.Development of stratified scavenging two-stroke cycle engine for emission reduction[R].Society of Automotive Engineers,SAE Technical Paper 1999-01-3269,1999.
    [8]
    BERGMAN M,BERNEKLEV J.A novel method of tuning a stratified scavenged two-stroke engine[R].Society of Automotive Engineers,SAE Technical Paper 2006-32-0055,2006.
    [9]
    BERGMAN M,ENANDER N,LAWENIUS M.CFD scavenging simulation and verification of a sequentially stratified charged two-stroke engine[R].Society of Automotive Engineers,SAE International Paper 2013-32-9079,2013.
    [10]
    朱访君,吴坚.内燃机工作过程数值计算及其优化[M].北京:国防科技出版社,1997.
    [11]
    高孝洪.内燃机工作过程数值计算[M].北京:国防工业出版社,1986.
    [12]
    林杰伦.内燃机工作过程数值计算[M].西安:西安交通大学出版社,1986.
    [13]
    宋龙甫,王建昕,郑国世.B231发动机性能优化及循环模拟计算[J].内燃机工程,2006,27(1):76-80.SONG Longfu,WANG Jianxin,ZHENG Guoshi.Performance optimization and simulation of B231 engine[J].International Combustion Engine Engineering,2006,27(1):76-80(in Chinese)
    [14]
    刘永长.内燃机原理[M].武汉:华中科技大学出版社,2001.
    [15]
    钟绍华,金国栋,谢田峰.基于GT-Power软件的内燃机消声器设计与分析方法[J].汽车技术,2003(7):7-10.ZHONG Shaohua,JIN Guodong,XIE Tianfeng.Design and analysis method for internal combustion engine mufflers based on GT-Power software[J].Automobile Technology,2003(7):7-10.(in Chinese)
    [16]
    蒋炎坤,钟毅芳,罗马吉.二冲程发动机扫排气道-缸内系统三维瞬态数值模拟研究[J].内燃机学报,2001,19(2):159-164.JIANG Yankun,ZHONG Yifang,LUO Maji.Research of three dimensional transient numerical simulation of scavenging-exhaust duct and cylinder system of two-stroke[J].Transactions of Csice,2001,19(2):159-164.(in Chinese)
    [17]
    魏明锐,刘永长,文华.二冲程汽油机分层进气系统数值模拟及试验研究[J].内燃机学报,2003,21(6):395-400.WEI Mingrui,LIU Yongchang,WEN Hua.Numerical simulation and experimental investigation of stratified scavenging system of two-stroke gasoline engine[J].Transactions of Csice,2003,21(6):395-400.(in Chinese)
    [18]
    陈登.二冲程缸内直喷汽油机扫气和喷油过程的多维数值模拟[D].天津:天津大学,2005.CHEN Deng.Multi-dimensional numercial simulation of scavenging and injection process of two-stroke direct injection engine[D].Tianjin:Tianjin University,2005.(in Chinese)
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