Analysis of liquid phase concentration distribution in non-evaporative diesel spray with laser induced fluorescence method
レーザ誘起蛍光法を用いた非蒸発ディーゼル噴霧の液相濃度分布解析
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20214837
- Paper/Info type
- Symposium Text
- Pages
- 1-6(Total 6 p)
- Date of publication
- Dec 2021
- Publisher
- JSAE & JSME
- Language
- Japanese
Detailed Information
| Author(J) | 1) 松田 大, 2) 長村 浩亮, 3) 松村 恵理子, 4) 千田 二郎 |
|---|---|
| Author(E) | 1) Dai Matsuda, 2) Kosuke Nagamura, 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 |
| Affiliation(E) | 1) Graduate School of Doshisha University, 2) Graduate School of Doshisha University, 3) Doshisha University, 4) Doshisha University |
| Abstract(J) | 本研究の目的は，燃料噴射条件や雰囲気条件の変化がディーゼル噴霧の混合気形成に与える影響を実験的に明らかにすることである．本報では，噴霧断面の計測が可能なレーザ誘起蛍光法を非蒸発ディーゼル噴霧上流部（軸方向距離0～30mm）に適用した．そこで，蛍光強度が液相の質量に比例することを利用し，運動量理論と噴射率を用いた新たな画像処理手法を開発することにより定量的な液相濃度分布の取得を試みた結果を報告する． Translation |
| Abstract(E) | The fuel injection in diesel engines have a significant effect on the engine performance. But there is little knowledge on the characteristics of dispersion of liquid phase concentration. The purpose of this study is to clarify the dispersion process of the liquid phase of diesel spray through quantitative analysis of the liquid phase concentration distribution in non-evaporating diesel spray. In this paper, a quantitative analysis method of the liquid phase concentration of diesel spray under non-evaporative conditions is developed. The cross-sectional mass flow of the fuel was obtained using the momentum theory from the measured concentration distribution of the liquid phase with the laser induced fluorescence method. The relationship between the fluorescence intensity and the liquid phase concentration was estimated. In addition, a scheme was developed to account for the attenuation of the laser light, which results in a quantitative spatial distribution of the liquid phase concentration. Using this method, the dispersion process of the liquid phase in diesel spray was evaluated. |
