Modelling on Spark Shortening under High-velocity Flow Conditions (Second Report)

高流速条件での放電経路の短縮化現象のモデル化（第２報）

The submodels of spark channel short circuit and blow-out, which were described in the 1st report, were implemented into a spark ignition model. The short circuit, whose major factor is electric potential differences between two arbitrary locations, occurs in the early phase of the discharge period and the blow-out, whose major factor is discharge current, occurs in the latter phase of the discharge period respectively. The behavior of spark channel, current and voltage of the secondary circuit and the ignition limit by increase of EGR rate agreed with a measurement data of a spark ignition process in a chamber.火花点火エンジンの点火過程における，火花の伸長に伴う短絡現象，吹消え・再放電現象，および放電波形（電流・電圧）の予測モデルを構築し，３次元燃焼解析用火花点火モデルに組み込んだ．実機相当の温度・圧力・流速を再現する計測容器で検証した結果，火花挙動，放電波形および失火限界EGR率は計測データをよく再現した．

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.49.732
• Record URL:
  • http://scholar.google.com/scholar_lookup?title=Modelling%20on%20Spark%20Shortening%20under%20High-velocity%20Flow%20Conditions%20(Second%20Report)&author=R.%20Masuda&author=S.%20Sayama&author=T.%20Fuyuto&author=M.%20Nagaoka&author=Y.%20Noguchi&author=A.%20Sugiura&publication_year=2016
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Masuda, Ryo
  • Sayama, Shogo
  • Fuyuto, Takayuki
  • Nagaoka, Makoto
  • Noguchi, Yasushi
  • Sugiura, Akimitsu
• Publication Date: 2018-7

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 732-738
• 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
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Electric discharge; Heat engines; Ignition; Mathematical models; Numerical analysis; Short circuits; Spark ignition engines; Sparks
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01679964
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Aug 31 2018 1:45PM