Study on Crucial Factor of Knock Intensity Using Constant Volume Vessel
定容容器を用いた燃焼実験によるノック強度に影響を及ぼす因子についての考察
The clarification of knock phenomena is necessary for further improvement of the thermal efficiency of gasoline engines. In order to clarify the factor that influences knock intensity, the propagating flame and behavior of end gas on knock occurrence process were observed using a constant volume vessel in this study. In the experiments, strong pressure oscillation occurred after auto-ignition in thermal boundary layer by end-wall. Then, one-dimensional numerical simulations were carried out under several thermal boundary conditions in order to investigate the influences of thermal boundary layer on knock intensity. It was suggested that knock intensity was affected by thermal boundary layer.ガソリンエンジンの熱効率向上においてノックが問題となっている。現在、ノック発生時期は推定可能となってきたが、ノック強度はその決定因子等、不明な点が多い。本研究では定容容器内に予混合火炎を伝播させノック発生までのエンドガスおよび壁面近傍を詳細に観察し、ノック強度に影響を及ぼす因子について検討を行った。
- Record URL:
- Record URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
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Authors:
- Nagano, Yukihide
- Shinya, Ryo
- Kono, Kenta
- Tanaka, Shota
- Kitagawa, Toshiaki
- Publication Date: 2018-7
Language
- English
- Japanese
Media Info
- Media Type: Digital/other
- Features: Figures; References;
- Pagination: pp 714-719
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Serial:
- Transactions of Society of Automotive Engineers of Japan
- Volume: 49
- Issue Number: 4
- Publisher: Society of Automotive Engineers of Japan
- ISSN: 0287-8321
- EISSN: 1883-0811
- Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Boundary layer; Combustion; Engine knock; Flame propagation; Heat engines; Spark ignition engines; Thermal analysis
- Subject Areas: Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01679985
- Record Type: Publication
- Source Agency: Japan Science and Technology Agency (JST)
- Files: TRIS, JSTAGE
- Created Date: Sep 4 2018 9:19AM