Measurements of turbulence within the cylinder of a motored CFR engine were taken with a hot-wire anemometer. Tests were conducted over a range of engine speeds, volumetric efficiencies, and compression ratios with both shrouded and nonshrouded intake valves. Data were processed digitally using both ensemble- and time-averaging techniques. Mean velocities, turbulent intensities, and turbulent micro and integral scales were computed. A nonstationary time-averaged analysis was found to give consistent and physically reasonable results. The turbulence which exists near TDC of compression was found to be isotropic, with both its intensity and scale determined by the intake process.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of Engine Variables on Turbulence in a Spark-Ignition Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1976 Automotive Engineering Congress and Exposition ; 1976



    Publication date :

    1976-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Effects of Engine Variables on Turbulence in a Spark-Ignition Engine

    Lancaster, D. R. / SAE | British Library Conference Proceedings | 1989


    Effects of engine variables on turbulence in a spark-ignition engine

    Lancaster,D.R. / General Motors,Res.Lab.,US | Automotive engineering | 1976


    Effects of turbulence on spark-ignition engine combustion

    Lancaster,D.R. / Univ.of Illinois,Urbana / US | Automotive engineering | 1975


    Effects of turbulence on spark-ignition engine combustion

    Lancaster,D.R. / Krieger,R.B. / Sorenson,S.C. et al. | Automotive engineering | 1976


    Spark Ignition Engine Control Variables Study

    Wertheimer, H. P. / Keranen, T. W. | SAE Technical Papers | 1973