Numerical Study on Ignition Process of Micro Pilot Fuel Spray in CH<sub>4</sub>-Air Mixture using 1D Diesel Jet Model
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- Kawauchi Satoshi
- (国研)海上・港湾・航空技術研究所
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- Imai Yasuo
- (国研)海上・港湾・航空技術研究所
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- Takagi Masahide
- (国研)海上・港湾・航空技術研究所
Bibliographic Information
- Other Title
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- 一次元噴霧モデルによるメタン-空気予混合気中における微小燃料噴霧の着火過程の数値解析
Abstract
This study examines how the enhanced entrainment affects the ignition processes of micro pilot spray using a onedimentional model. The calculation model could quantitatively simulate the increasing tendency of the measured ignition delay. In addition, the simulation result demonstrated that OH radical decreased prior to the onset of the hot flame under injection conditions leading to long ignition delays. Examining the change in the entrainment rate into the spray showed that the decrease in OH radical was related to an increase in enhanced entrainment after the end of injection.
Journal
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- Transactions of Society of Automotive Engineers of Japan
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Transactions of Society of Automotive Engineers of Japan 51 (5), 767-772, 2020
Society of Automotive Engineers of Japan
