Simulation of Air/Fuel Mixture Considering Liquid-Film Breakup near Fuel Injector(Fluids Engineering)
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- ISHII Eiji
- Mechanical Engineering Research Laboratory, Hitachi, Ltd.
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- SUKEGAWA Yoshihiro
- (株)日立製作所日立研究所
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- YAMADA Hiroshi
- 日立オートモティブシステムズ(株)
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- YASUKAWA Yoshihito
- Mechanical Engineering Research Laboratory, Hitachi, Ltd.
Bibliographic Information
- Other Title
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- 燃料噴射装置近傍の液膜分裂挙動を考慮した混合気解析(流体工学,流体機械)
- 燃料噴射装置近傍の液膜分裂挙動を考慮した混合気解析
- ネンリョウ フンシャ ソウチ キンボウ ノ エキマク ブンレツ キョドウ オ コウリョ シタ コンゴウキカイセキ
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Abstract
The fuel spray for automobile engine includes multi-scale free surfaces; liquid films formed at the fuel-injector outlet, ligaments generated by the liquid-film breakup, and droplets generated from the ligaments within air/fuel mixture region. To simulate multi-scale free surfaces in the fuel spray of an injector for automobile engine, we combined a liquid-film-breakup simulation and an air/fuel-mixture simulation. The liquid-film breakup near the injector outlet was simulated by using a particle method, and the air/fuel mixture after the liquid-film breakup was simulated by using a "discrete droplet model" (DDM). Distributions of droplet diameters and velocities, calculated in the liquid-film breakup simulation, were used as the injection condition of DDM. We applied our new method to simulate the spray from a collision fuel injector. The simulation results were verified by comparing them with measurements. The liquid-film breakup near the injector outlet and the behavior of the air/fuel mixture qualitatively agreed with the measurements. We found that our new method was useful to the fuel-spray simulation for automobile engines.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 76 (769), 1363-1369, 2010
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001206295460608
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- NII Article ID
- 110007730362
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- NII Book ID
- AN00187441
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- ISSN
- 18848346
- 03875016
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- NDL BIB ID
- 10843697
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed