Atomization Process in Multi-hole Nozzle Spray for Port Fuel Injection (Third Report)
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）
- Delivery
- Available on the other site
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- Publication code
- 20214724
- Paper/Info type
- JSAE Transaction
Vol.52 No.5
- Pages
- 1047-1052(Total 6 p)
- Date of publication
- Sep 2021
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 松田 大, 2) 西村 佳那子, 3) 松村 恵理子, 4) 千田 二郎 |
| Author(E) | 1) Dai Matsuda, 2) Kanako Nishimura, 3) Eriko Matsumura, 4) Jiro Senda |
| Affiliation(J) | 1) 同志社大学大学院, 2) 同志社大学大学院, 3) 同志社大学, 4) 同志社大学 |
| Abstract(J) | 本研究は吸気管噴射用マルチホールノズルの噴霧微粒化過程の解明およびモデリングを目的としている．本報では，液膜分裂を線形安定性解析よりモデル化，エネルギスペクトルを用いて粒度分布のモデリングを行なった．モデル結果を燃料噴霧の可視化より得られた実験結果と比較しモデルの評価を行なった． Translation |
| Abstract(E) | 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. |
