Spray flow structure from twin-hole diesel injector nozzles
Abstract
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 LTRAC laboratory at Monash University, while the latter was performed at the 7-BM beamline of the Advanced Photon Source 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, even before the sprays merged. Finally, switching in hole dominance was observed from one twin-hole nozzle, and this was accompanied by greater instability in massmore »
- Authors:
-
- Monash Univ., VIC (Australia). Lab. for Turbulence Research in Aerospace and Combustion, Dept. of Mechanical and Aerospace Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Energy System Division
- Argonne National Lab. (ANL), Argonne, IL (United States). X-Ray Science Division
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); Australian Research Council (ARC); USDOE
- OSTI Identifier:
- 1377397
- Alternate Identifier(s):
- OSTI ID: 1416862
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Experimental Thermal and Fluid Science
- Additional Journal Information:
- Journal Volume: 86; Journal Issue: C; Journal ID: ISSN 0894-1777
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Twin-hole nozzle; Diesel; Spray; Penetration; Spray merge; X-ray radiography
Citation Formats
Nguyen, D., Duke, D., Kastengren, A., Matusik, K., Swantek, A., Powell, C. F., and Honnery, D. Spray flow structure from twin-hole diesel injector nozzles. United States: N. p., 2017.
Web. doi:10.1016/j.expthermflusci.2017.04.020.
Nguyen, D., Duke, D., Kastengren, A., Matusik, K., Swantek, A., Powell, C. F., & Honnery, D. Spray flow structure from twin-hole diesel injector nozzles. United States. https://doi.org/10.1016/j.expthermflusci.2017.04.020
Nguyen, D., Duke, D., Kastengren, A., Matusik, K., Swantek, A., Powell, C. F., and Honnery, D. Tue .
"Spray flow structure from twin-hole diesel injector nozzles". United States. https://doi.org/10.1016/j.expthermflusci.2017.04.020. https://www.osti.gov/servlets/purl/1377397.
@article{osti_1377397,
title = {Spray flow structure from twin-hole diesel injector nozzles},
author = {Nguyen, D. and Duke, D. and Kastengren, A. and Matusik, K. and Swantek, A. and Powell, C. F. and Honnery, D.},
abstractNote = {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 LTRAC laboratory at Monash University, while the latter was performed at the 7-BM beamline of the Advanced Photon Source 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, even before the sprays merged. Finally, 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 injector.},
doi = {10.1016/j.expthermflusci.2017.04.020},
journal = {Experimental Thermal and Fluid Science},
number = C,
volume = 86,
place = {United States},
year = {Tue Apr 18 00:00:00 EDT 2017},
month = {Tue Apr 18 00:00:00 EDT 2017}
}
Web of Science
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