图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 30, 2020 卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.2012005219
pages 239-258

MODELING OF n-HEPTANE SPRAYS INJECTED THROUGH MULTI-HOLE TYPE GDI INJECTOR

Yunjung Oh
Graduate School, Hanyang University, Seoul 133-791, Republic of Korea
Sanghoon Lee
Graduate School, Hanyang University, Seoul 133791, Republic of Korea
Sungwook Park
School of Mechanical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04736, Republic of Korea

ABSTRACT

The purpose of this study is to investigate the spray plume shape and fuel atomization characteristics of a gasoline direct injection (GDI) system. The spray characteristics were analyzed according to ambient gas pressure, temperature and injection pressure. The multi-hole type GDI system was simulated to enhance the fuel atomization performance. A multi-dimensional computational fluid dynamics code (KIVA-3V) was implemented to predict the two-dimensional spray behavior. The predicted spray penetration, velocity distribution of ambient gas, droplet size and spray plume shape results were compared with the experimental results to verify the accuracy of numerical models. The Kelvin−Helmholtz, Rayleigh−Taylor breakup model and radius-of-influence collision model were applied for the prediction of spray behavior and characteristics. It was found that the ambient gas pressure had a significant influence on spray tip penetration length and spray plume shape. In addition, the Sauter mean diameter was decreased and vortex became stronger with higher injection pressure. On the whole, the present calculation models showed good agreement with experiments in terms of spray shape and size distributions.


Articles with similar content:

EXPERIMENTAL INVESTIGATION OF SPRAY CHARACTERISTICS OF DIESEL-METHANOL-WATER EMULSION
Atomization and Sprays, Vol.25, 2015, issue 8
Wuqiang Wang, Shenteng Cao, Dongyin Wu, Junjie Yan, Zhenzhou Pang
EFFECT OF INJECTION STRATEGY ON THE SPRAY DEVELOPMENT PROCESS IN A SINGLE-CYLINDER OPTICAL GDI ENGINE
Atomization and Sprays, Vol.25, 2015, issue 9
Sungwook Park, Jingeun Song
EVAPORATING SPRAY SIMULATION IN A DIRECT INJECTION MODEL ENGINE
International Heat Transfer Conference 10, Vol.19, 1994, issue
Hong Sun Ryou, H.C. Yang, Young Ki Choi
EFFECT OF SPLIT INJECTION ON THE MACROSCOPIC DEVELOPMENT AND ATOMIZATION CHARACTERISTICS OF A DIESEL SPRAY INJECTED THROUGH A COMMON-RAIL SYSTEM
Atomization and Sprays, Vol.16, 2006, issue 5
Rolf D. Reitz, Chang Sik Lee, Sungwook Park
EFFECT OF INJECTION PARAMETERS ON SPRAY CHARACTERISTICS OF GAS-TO-LIQUID (GTL), BIODIESEL, AND DIESEL FUEL FOR A MULTI-HOLE INJECTOR IN A DIESEL ENGINE
Atomization and Sprays, Vol.25, 2015, issue 12
Chang Sik Lee, Donggon Lee, Hyun Gu Roh, Kibong Choi