We present an experimental investigation of the local flame front characteristics as function of the distance between the flame front and the piston. The objective of this paper is to provide some experimental data about the flame characteristics at the approach of the piston. The transparent engine speed is fixed at 2000 rpm and air-methane mixture was used with an equivalence ratio equal to 0.9. PLIF acetone imaging was acquired to estimate first the curvature, the curvature radius and the normal direction orientation of the local contours as function of the flame-piston distance. A discontinuity in these parameters appears when the distance is less than 1 mm. Secondly we apply local roughness analysis system to estimate the local fractal dimension of the flame front. We conclude that fractal dimension changes rapidly at 2.5 mm from the piston. A logarithm law was found to define the fractal dimension as function of flame-piston distance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Local Flame Front Structure in the Vicinity of the Piston in a Transparent SI Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Spring Fuels & Lubricants Meeting ; 2001



    Publication date :

    2001-05-07




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    Local flame front structure in the vicinity of the piston in a transparent spark ignition engine

    Foucher,F. / Burnel,S. / Mounaim-Rousselle,C. et al. | Automotive engineering | 2001


    The Development of a Transparent Cylinder Engine for Piston Engine Fluid Mechanics Research

    Richman, R. M. / Reynolds, W. C. | SAE Technical Papers | 1984


    The Development of a Transparent Cylinder Engine for Piston Engine Fluid Mechanics Research

    Richman,R.M. / Reynolds,W.C. / Stanford Univ.,US | Automotive engineering | 1984


    Method for operating a piston engine, and piston engine

    KNABE HELMUT / WEIDELE HORST / TOTH ARON | European Patent Office | 2023

    Free access

    METHOD FOR OPERATING A PISTON ENGINE, AND PISTON ENGINE

    KNABE HELMUT / WEIDELE HORST / TOTH ARON | European Patent Office | 2021

    Free access