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Description
Title: | Modeling of Air-Assisted and Flash Boiling Sprays in Gasoline Direct Injection Engines |
Author(s): | Chang, Dar-Lon |
Doctoral Committee Chair(s): | Chia-Fon F. Lee |
Department / Program: | Mechanical Engineering |
Discipline: | Mechanical Engineering |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Engineering, Mechanical |
Abstract: | Impingement simulations were made for air-assisted sprays and flash boiling sprays. Both the air-assisted sprays and flash boiling sprays reduced fuel impingement substantially compared with a conventional GDI fuel injector. The air-assisted fuel injector produced the softest sprays in this study, but flash boiling may be more cost-effective for the automotive industry. The modeling methods developed by this work may be useful for the optimization and design of air-assisted and flash boiling fuel injectors in future GDI engines. Moreover, the simplified bubble growth model can be applied to the simulation of bubbly flows in many applications ranging from nuclear reactor coolant safety to refrigeration systems. |
Issue Date: | 2003 |
Type: | Text |
Language: | English |
Description: | 206 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003. |
URI: | http://hdl.handle.net/2142/83794 |
Other Identifier(s): | (MiAaPQ)AAI3101813 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 2003 |
This item appears in the following Collection(s)
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Dissertations and Theses - Mechanical Science and Engineering
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois