Effect of Injection Pressure on Droplet Behavior Inside Diesel Fuel Sprays

Noritsune Kawaharada; Daisaku Sakaguchi; Hironobu Ueki; Masahiro Ishida

doi:10.4271/2015-01-1841

Effect of Injection Pressure on Droplet Behavior Inside Diesel Fuel Sprays

Noritsune Kawaharada, Daisaku Sakaguchi, Hironobu Ueki, Masahiro Ishida

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

Measurements of temporal and spatial changes in the velocity and size of droplets of diesel fuel sprays under two injection pressures were conducted near the nozzle orifice by a laser 2-focus velocimeter (L2F). The result showed that the size of droplets under higher rail pressure was larger than that under lower rail pressure at the spray center and was smaller than that under lower rail pressure at the spray periphery. It was found that the size of droplets deceased in the downstream direction of the spray and the decrease rate increased with the rail pressure. The cross-sectional average velocity increased and the cross-sectional average size decreased with the rail pressure in the spray near the nozzle exit.

Original language	English
Journal	SAE Technical Papers
Volume	2015-September
Issue number	September
DOIs	https://doi.org/10.4271/2015-01-1841
Publication status	Published - Sept 1 2015
Externally published	Yes
Event	JSAE/SAE 2015 International Powertrains, Fuels and Lubricants Meeting, FFL 2015 - Kyoto, Japan Duration: Sept 1 2015 → Sept 4 2015

All Science Journal Classification (ASJC) codes

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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10.4271/2015-01-1841

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title = "Effect of Injection Pressure on Droplet Behavior Inside Diesel Fuel Sprays",

abstract = "Measurements of temporal and spatial changes in the velocity and size of droplets of diesel fuel sprays under two injection pressures were conducted near the nozzle orifice by a laser 2-focus velocimeter (L2F). The result showed that the size of droplets under higher rail pressure was larger than that under lower rail pressure at the spray center and was smaller than that under lower rail pressure at the spray periphery. It was found that the size of droplets deceased in the downstream direction of the spray and the decrease rate increased with the rail pressure. The cross-sectional average velocity increased and the cross-sectional average size decreased with the rail pressure in the spray near the nozzle exit.",

author = "Noritsune Kawaharada and Daisaku Sakaguchi and Hironobu Ueki and Masahiro Ishida",

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TY - JOUR

T1 - Effect of Injection Pressure on Droplet Behavior Inside Diesel Fuel Sprays

AU - Kawaharada, Noritsune

AU - Sakaguchi, Daisaku

AU - Ueki, Hironobu

AU - Ishida, Masahiro

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Measurements of temporal and spatial changes in the velocity and size of droplets of diesel fuel sprays under two injection pressures were conducted near the nozzle orifice by a laser 2-focus velocimeter (L2F). The result showed that the size of droplets under higher rail pressure was larger than that under lower rail pressure at the spray center and was smaller than that under lower rail pressure at the spray periphery. It was found that the size of droplets deceased in the downstream direction of the spray and the decrease rate increased with the rail pressure. The cross-sectional average velocity increased and the cross-sectional average size decreased with the rail pressure in the spray near the nozzle exit.

AB - Measurements of temporal and spatial changes in the velocity and size of droplets of diesel fuel sprays under two injection pressures were conducted near the nozzle orifice by a laser 2-focus velocimeter (L2F). The result showed that the size of droplets under higher rail pressure was larger than that under lower rail pressure at the spray center and was smaller than that under lower rail pressure at the spray periphery. It was found that the size of droplets deceased in the downstream direction of the spray and the decrease rate increased with the rail pressure. The cross-sectional average velocity increased and the cross-sectional average size decreased with the rail pressure in the spray near the nozzle exit.

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DO - 10.4271/2015-01-1841

M3 - Conference article

AN - SCOPUS:85018680432

SN - 0148-7191

VL - 2015-September

JO - SAE Technical Papers

JF - SAE Technical Papers

IS - September

T2 - JSAE/SAE 2015 International Powertrains, Fuels and Lubricants Meeting, FFL 2015

Y2 - 1 September 2015 through 4 September 2015

ER -

Effect of Injection Pressure on Droplet Behavior Inside Diesel Fuel Sprays

Abstract

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