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RIM Experiment on Fuel Adhesion Characteristics of Inclined-Wall-Impinging Spray under Cross-Flow Conditions

  • Gengxin Zhang*
  • , Penghua Shi
  • , Hongliang Luo
  • , Ogata Yoichi
  • , Keiya Nishida
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
JournalThe Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines
DOIs
Publication statusPublished - 25 Jan 2023
EventThe 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 20228 Jul 2022

Keywords

  • Direct Injection Gasoline Engine
  • Cross-flow
  • Wall-impingement
  • RIM
  • Fuel adhesion

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