The purpose of this paper is to describe a methodology based on experimental and theoretical studies for the modeling of typical exhaust systems used in two-stroke small engines. The steady and dynamic behaviors of these systems have been measured in a flow test rig and in an impulse test rig, respectively. Information obtained from these experiments is used in two ways: to find a suitable geometric model to be used in a finite-difference scheme code, and to provide a mean pressure and a frequency domain reflecting boundary, in the frame of a hybrid method. A complete 50cc engine was modeled and comparisons between predicted and measured instantaneous pressure at the exhaust port show a fair agreement, the results of the hybrid approach being more accurate.


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    Title :

    Modeling the Exhaust System in Two-Stroke Small Engines


    Additional title:

    Sae Technical Papers


    Contributors:
    Torregrosa, A. J. (author) / Gaia, C. (author) / Climent, H. (author) / Galindo, J. (author) / Payri, R. (author)

    Conference:

    Automotive and Transportation Technology Congress and Exposition ; 2001



    Publication date :

    2001-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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