Abstract
The impingement of fuel sprays on the piston surface significantly affects mixture formation, combustion performance, and pollutant emissions in Direct-Injection Spark-Ignition (DISI) engines. To better understand the fuel adhesion behavior, the fuel adhesion characteristics of fuel spray impinging on the flat wall under cross-flow condition were investigated in this work. Refractive Index Matching (RIM) were employed to observe the propagation of fuel adhesion. Then the area, mass, and thickness of fuel adhesion were evaluated under various cross-flow velocities. Also, the propagation mechanism and lifetime prediction of fuel adhesion under the cross-flow conditions were revealed. The experimental results can provide necessary guidance on the operating conditions of airflow inside the engine.
| Original language | English |
|---|---|
| Journal | The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines |
| DOIs | |
| Publication status | Published - 25 Jan 2023 |
| Event | The 10th International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022) - Hokkaido University Academic Exchange Hall, online venue (hybrid event), Hokkaido, Japan Duration: 5 Jul 2022 → 8 Jul 2022 |
Keywords
- Direct Injection Gasoline Engine
- Cross-flow
- Wall-impingement
- RIM
- Fuel adhesion
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