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다공형 GDI 인젝터의 분무 구조 및 발달 과정에 대한 연구

Title
다공형 GDI 인젝터의 분무 구조 및 발달 과정에 대한 연구
Other Titles
Spray and atomization characterization of a multi-hole GDI injector
Author
박성욱
Keywords
가솔린 직접분사; 다공형 인젝터; 주변 분무 간섭현상; GDI; Gasoline Direct Injection; Multi-hole injector; PDPA; phase Doppler particle analyzer; Jet interaction
Issue Date
2014-09
Publisher
한국액체미립화학회
Citation
한국액체미립화학회 학술발표논문집, 2014, 2014(0), P.58-59
Abstract
The purpose of this study is to investigate a behavior of spray development and atomization characteristics of a multi-hole gasoline direct injection (GDI) injector. For this experiment, a two-dimensional phase Doppler particle analyzer system was used to measure droplet diameter and velocity simultaneously. To investigate overall atomization characteristics of GDI spray, measurements have been performed on a single jet and center region of spray. Results showed that the SMD at the region of single jet tends to be larger than that of center region of spray. However, approaching the end of injection period, an increase in droplet diameter of center region of spray was observed. This can be considered as the effect of droplet coalescence due to low velocity and large number of droplet. The velocity of single jet maintained a constant velocity of 60m/s during injection period. After the end of injection period, however, a great reduction in the velocity was observed.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=3276265http://hdl.handle.net/20.500.11754/52638
ISSN
1226-2277
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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