Spray flow structure from twin-hole diesel injector nozzles

被引:12
作者
Nguyen, D. [1 ]
Duke, D. [2 ]
Kastengren, A. [3 ]
Matusik, K. [2 ]
Swantek, A. [2 ]
Powell, C. F. [2 ]
Honnery, D. [1 ]
机构
[1] Monash Univ, Dept Mech & Aerosp Engn, Lab Turbulence Res Aerosp & Combust, Clayton, Vic 3800, Australia
[2] Argonne Natl Lab, Energy Syst Div, Lemont, IL 60439 USA
[3] Argonne Natl Lab, Xray Sci Div, Lemont, IL 60439 USA
基金
澳大利亚研究理事会;
关键词
Twin-hole nozzle; Diesel; Spray; Penetration; Spray merge; X-ray radiography; X-RAY; COMBUSTION; PRESSURE; ENGINE; FUEL; PENETRATION; CAVITATION; BEHAVIOR; LENGTH; ANGLE;
D O I
10.1016/j.expthermflusci.2017.04.020
中图分类号
O414.1 [热力学];
学科分类号
摘要
Two techniques were used to study non-evaporating diesel sprays from common rail injectors which were equipped with twin-hole and single-hole nozzles for comparison. To characterise the sprays, high speed optical imaging and X-ray radiography were used. The former was performed at the Laboratory for Turbulence Research in Aerospace and Combustion (LTRAC) at Monash University, while the latter was performed at the 7-BM beamline of the Advanced Photon Source (APS) at Argonne National Laboratory. The optical imaging made use of high temporal, high spatial resolution spray recordings on a digital camera from which peripheral parameters in the initial injection phase were investigated based on edge detection. The X-ray radiography was used to explore quantitative mass distributions, which were measured on a point-wise basis at roughly similar sampling rate. Three twin-hole nozzles of different subtended angles and a single-hole nozzle were investigated at injection pressure of 1000 bar in environments of 20 bar back pressure. Evidence of strong cavitation was found for all nozzles examined with their CD ranging from 0.62 to 0.69. Penetration of the twin-hole nozzles was found to lag the single-hole nozzle, before the sprays merged. Switching in hole dominance was observed from one twin-hole nozzle, and this was accompanied by greater instability in mass flow during the transient opening phase of the injectors. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码:235 / 247
页数:13
相关论文
共 53 条
[41]   Comparison of Diesel Spray Combustion in Different High-Temperature, High-Pressure Facilities [J].
Pickett, Lyle M. ;
Genzale, Caroline L. ;
Bruneaux, Gilles ;
Malbec, Louis-Marie ;
Hermant, Laurent ;
Christiansen, Caspar ;
Schramm, Jesper .
SAE INTERNATIONAL JOURNAL OF ENGINES, 2010, 3 (02) :156-181
[42]  
Powell CF, 2009, P ASME 2009 INT COMB
[43]   Quantitative X-ray measurements of high-pressure fuel sprays from a production heavy duty diesel injector [J].
Ramirez, A. I. ;
Som, S. ;
Aggarwal, Suresh K. ;
Kastengren, A. L. ;
El-Hannouny, E. M. ;
Longman, D. E. ;
Powell, C. F. .
EXPERIMENTS IN FLUIDS, 2009, 47 (01) :119-134
[44]   Effect of ambient pressure on penetration of a diesel spray [J].
Roisman, I. V. ;
Araneo, Lucio ;
Tropea, C. .
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2007, 33 (08) :904-920
[45]  
Schmidt D. P., 1997, 971597 SAE, P117
[46]  
Schmidt DavidP., 2001, International Journal of Engine Research, V2, no, P1, DOI DOI 10.1243/1468087011545316
[47]  
Sou A., J FLUID SCI TECHNOL, V3
[48]   Numerical investigation on effects of nozzle's geometric parameters on the flow and the cavitation characteristics within injector's nozzle for a high-pressure common-rail DI diesel engine [J].
Sun, Zuo-Yu ;
Li, Guo-Xiu ;
Chen, Chuan ;
Yu, Yu-Song ;
Gao, Guo-Xi .
ENERGY CONVERSION AND MANAGEMENT, 2015, 89 :843-861
[49]   Numerical study of the effects of injector needle movement and the nozzle inclination angle on the internal fluid flow and spray structure of a group-hole nozzle layout [J].
Taghavifar, Hadi ;
Shervani-Tabar, Mohammad Taghi ;
Abbasalizadeh, Majid .
APPLIED MATHEMATICAL MODELLING, 2015, 39 (23-24) :7718-7733
[50]   Experimental and numerical investigations on internal flow characteristics of diesel nozzle under real fuel injection conditions [J].
Wang, Xiang ;
Li, Ke ;
Su, Wanhua .
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2012, 42 :204-211