Atomization Process in Multi-hole Nozzle Spray for Port Fuel Injection (Third Report)

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Other Title
  • 吸気管噴射用マルチホールノズルの噴霧微粒化過程（第3 報）
  • - Modeling of Droplet Generation Process -
  • -液滴生成過程のモデリング-

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Description

Jet configuration of a multi-hole nozzle spray for gasoline port injection is a liquid sheet. In this paper, novel modeling scheme of the generated droplets is reported. The spray atomization process is modeled using linear stability theory in liquid jet, including the injection feature of the liquid sheet, the breakup process of the liquid sheet, and the breakup process from ligaments to droplets. In addition, a model is proposed to provide the droplet size distribution using the statistical theory of uniform turbulence. As a result, it is found that the droplet generation length coincides quantitatively in the region where the wave growth rate is higher. However, due to the nonlinear effects of waves, the prediction accuracy of large droplet generation is reduced. Therefore, the experimental results of droplet generation length were used to correct the breakup time. The droplet size distribution modeled using the corrected breakup time can represent the atomization effect with changing fuel injection pressure.

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Details 詳細情報について

  • CRID
    1390008156666116736
  • NII Article ID
    130008101932
  • DOI
    10.11351/jsaeronbun.52.1047
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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