Abstract
The spray from a multi-hole injector applied to direct injection spark ignition (DISI) engine was investigated. In order to understand the detailed structure of the transient spray near the nozzle a combined LDA/PDA system was used. PDA system was optimized in order to detect relative smaller droplets. Size-classified technique was used to get deep information about the spray characterizations near nozzle. The experiments were performed at 7 MPa of injection pressure. At early stage of spray the droplet velocity distribution in the centre of the spray showed high value. Smaller droplets under 15 μm showing followability to air flow, while larger droplets over 20 μm will have drag due to momentum decay. Droplets of 15
| Original language | English |
|---|---|
| Pages (from-to) | 36-50 |
| Number of pages | 15 |
| Journal | Journal of Thermal Science and Technology |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 |
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Keywords
- Atomization
- Multi-hole injector
- Phase doppler anemometer
- Size-classified droplet behavior
- Spray
ASJC Scopus subject areas
- Materials Science(all)
- Instrumentation
- Atomic and Molecular Physics, and Optics
- Engineering (miscellaneous)
Cite this
Characterization of the spray of the DISI multi-hole injector by means of phase doppler anemometer. / Ahmed, Fatma; Kawahara, Nobuyuki; Tomita, Eiji; Sumida, Mamoru.
In: Journal of Thermal Science and Technology, Vol. 5, No. 1, 2010, p. 36-50.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Characterization of the spray of the DISI multi-hole injector by means of phase doppler anemometer
AU - Ahmed, Fatma
AU - Kawahara, Nobuyuki
AU - Tomita, Eiji
AU - Sumida, Mamoru
PY - 2010
Y1 - 2010
N2 - The spray from a multi-hole injector applied to direct injection spark ignition (DISI) engine was investigated. In order to understand the detailed structure of the transient spray near the nozzle a combined LDA/PDA system was used. PDA system was optimized in order to detect relative smaller droplets. Size-classified technique was used to get deep information about the spray characterizations near nozzle. The experiments were performed at 7 MPa of injection pressure. At early stage of spray the droplet velocity distribution in the centre of the spray showed high value. Smaller droplets under 15 μm showing followability to air flow, while larger droplets over 20 μm will have drag due to momentum decay. Droplets of 15
AB - The spray from a multi-hole injector applied to direct injection spark ignition (DISI) engine was investigated. In order to understand the detailed structure of the transient spray near the nozzle a combined LDA/PDA system was used. PDA system was optimized in order to detect relative smaller droplets. Size-classified technique was used to get deep information about the spray characterizations near nozzle. The experiments were performed at 7 MPa of injection pressure. At early stage of spray the droplet velocity distribution in the centre of the spray showed high value. Smaller droplets under 15 μm showing followability to air flow, while larger droplets over 20 μm will have drag due to momentum decay. Droplets of 15
KW - Atomization
KW - Multi-hole injector
KW - Phase doppler anemometer
KW - Size-classified droplet behavior
KW - Spray
UR - http://www.scopus.com/inward/record.url?scp=77957149581&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957149581&partnerID=8YFLogxK
U2 - 10.1299/jtst.5.36
DO - 10.1299/jtst.5.36
M3 - Article
AN - SCOPUS:77957149581
VL - 5
SP - 36
EP - 50
JO - Journal of Thermal Science and Technology
JF - Journal of Thermal Science and Technology
SN - 1880-5566
IS - 1
ER -