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http://dx.doi.org/10.3795/KSME-B.2004.28.5.545

Numerical Analysis of Spray Behavior and Vaporization Characteristic of GDI Engine Injector Under Ambient Conditions  

Shim, Young-Sam (부산대학교 대학원 기계공학과)
Hwang, Soon-Chul (부산대학교 대학원 기계공학과)
Kim, Duck-Jool (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.5, 2004 , pp. 545-552 More about this Journal
Abstract
The purpose of this study is to improve the prediction ability of the atomization and vaporization processes of GDI spray. Several models have been introduced and compared. The atomization process was modeled using hybrid breakup model that is composed of Linearized Instability Sheet Atomization (LISA) model and Aerodynamically Progressed TAB (APTAB) model. The vaporization process was modeled using Spalding model and Abramzon ＆ Sirignano model. Exciplex fluorescence method was used for comparing calculated with experimental results. The experiment and computation were performed at the ambient pressure of 0.1 MPa, 0.5 MPa and 1.0 MPa and the ambient temperature of 293k and 473k. Comparison of calculated and experimental spray characteristics was carried out and the calculated results of GDI spray showed good agreement with experimental results.
Keywords
GDI; Equivalence Ratio; Spray Tip Penetration; SMD; Vaporization Model; Hybrid Breakup Model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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