PTV analysis of the entrained air into the diesel spray at high-pressure injection

被引：1

作者：

Toda, Naoki ^{[1
]}

Yamashita, Hayato ^{[1
]}

Mashida, Makoto ^{[2
]}

机构：

[1] NIPPON SOKEN INC, 14 Iwaya, Nishio, Aichi 4450012, Japan

[2] DENSO Corp, Kariya, Aichi 4488661, Japan

来源：

INTERNATIONAL CONFERENCE ON OPTICAL PARTICLE CHARACTERIZATION (OPC 2014) | 2014年 / 9232卷

关键词：

PTV; Diesel spray; Diesel combustion; Entrainment; Set-off length;

D O I：

10.1117/12.2063632

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In order to clarify the effect of high-pressure injection on soot reduction in terms of the air entrainment into spray, the air flow surrounding the spray and set-off length indicating the distance from the nozzle tip to the flame region in diffusion diesel combustion were investigated using 300MPa injection of a multi-hole injector. The measurement of the air entrainment flow was carried out at non-evaporating condition using consecutive PTV (particle tracking velocimetry) method with a high-speed camera and a high-frequency pulse YAG laser. The set-off length was measured at high-pressure and high-temperature using the combustion bomb of constant volume and optical system of shadow graph method. And the amount of air entrainment into spray until reaching set-off length in diffusion combustion was studied as a factor of soot formation.

引用

页数：6