Estimation of equivalence ratio distribution in diesel spray using a computational fluid dynamics

Yasumasa Suzuki, Taku Tsujimura, Jin Kusaka

研究成果: Conference contribution

抄録

It is important to understand the mechanism of mixing and atomization of the diesel spray. In addition, the computational prediction of mixing behavior and internal structure of a diesel spray is expected to promote the further understanding about a diesel spray and development of the diesel engine including devices for fuel injection. In this study, we predicted the formation of diesel fuel spray with 3D-CFD code and validated the application by comparing experimental results of the fuel spray behavior and the equivalence ratio visualized by Layleigh-scatter imaging under some ambient, injection and fuel conditions. Using the applicable constants of KH-RT model, we can predict the liquid length spray on a quantitative level. under various fuel injection, ambient and fuel conditions. On the other hand, the change of the vapor penetration and the fuel mass fraction and equivalence ratio distribution with change of fuel injection and ambient conditions quantitatively. The 3D-CFD code used in this study predicts the spray cone angle and entrainment of ambient gas are predicted excessively, therefore there is the possibility of the improvement in the prediction accuracy by the refinement of fuel droplets breakup and evaporation model and the quantitative prediction of spray cone angle.

本文言語English
ホスト出版物のタイトルInternational Conference on Optical Particle Characterization, OPC 2014
出版社SPIE
ISBN(印刷版)9781628412864
DOI
出版ステータスPublished - 2014 1月 1
イベントInternational Conference on Optical Particle Characterization, OPC 2014 - Tokyo, Japan
継続期間: 2014 3月 102014 3月 14

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9232
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

Conference

ConferenceInternational Conference on Optical Particle Characterization, OPC 2014
国/地域Japan
CityTokyo
Period14/3/1014/3/14

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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