In order to measure the spatial distribution of fuel jet concentration quantitatively, a technique combining methods of fluorescence with absorption was developed. LIF method can obtain the spatial fuel distribution qualitatively, but quantitative measurement is difficult. Meanwhile, laser-beam absorption method can quantitatively obtain the integrated jet concentration on the light-path. In addition, scanning the laser-beam allows for a quasi 2-D quantitative measurement of the jet concentration. Firstly, in this study, this measurement system was tested in a homogeneously charged field while varying the dopant NO2 concentration, the laser-beam scanning speed, and the ambient pressure. As a result, some data-correction techniques were developed to produce a quantitative measurement. Secondly, this system was applied to gaseous jet fields in a constant volume bomb. Harnessing the data-correction techniques, quasi 2-D measurements of the gas concentration were successfully obtained even in a transonic jet velocity condition.


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    Titel :

    Quantitative 2-D Gas Concentration Measurement by Laser-Beam Scanning Technique with Combination of Absorption and Fluorescense


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Toyoda, Kazuki (Autor:in) / Imai, Yasuo (Autor:in) / Moriyoshi, Yasuo (Autor:in)

    Kongress:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2003



    Erscheinungsdatum :

    2003-10-27




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch