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Transient High-Pressure Hydrogen Jet Measurements
Technical Paper
2006-01-0652
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Schlieren visualization was performed to investigate hydrogen injection into a quiescent chamber. The injection pressures investigated were 52 and 104 bar, and the chamber density ranged from 1.15 to 12.8 kg/m3, giving rise to underexpanded jets for all conditions. The expansion waves outside the nozzle were clearly visible with hydrogen, and the effect was confirmed with studies of nitrogen injected into a nitrogen environment. The distance between the expansion wave fronts was found to scale directly with the ratio of the exit pressure to the chamber pressure. The jet tip penetration rate was measured and was found to increase with injection pressure, and decrease with chamber density as expected. A mass- and momentum-preserving scheme was developed to relate the underexpanded jet to a subsonic jet of larger diameter. The jets were found to exhibit self-similar behavior in the far field when the appropriate characteristic length and time scales were used for the nondimensionalization.
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Citation
Petersen, B. and Ghandhi, J., "Transient High-Pressure Hydrogen Jet Measurements," SAE Technical Paper 2006-01-0652, 2006, https://doi.org/10.4271/2006-01-0652.Also In
References
- Tang, X. Kabat, D. M. Natkin, R. J. Stockhausen, W. F. Heffel, J. “Ford P2000 Hydrogen Engine Dynamometer Development,” SAE Paper 2002-01-0242 2002
- Wimmer, A. Wallner, T. Ringler, J. Gerbig, F. “H2-Direct Injection∼A Highly Promising Combustion Concept,” SAE Paper 2005-01-0108 2005
- DeRisi, A. Gajdeczko, B.F. Bracco, F.V. “A study of H2, CH4, C2H6 mixing and combustion in a direct-injection stratified-charge engine,” SAE Paper 971710 1997
- Hill, P.G.. Ouellette, P. “Transient turbulent gaseous fuel jets for diesel engines,” Journal of Fluids Engineering 121 93 101 1999
- Turner, J.S. “The starting plume in neutral surroundings J. Fluid Mech , 13 356 368 1962
- Ricou, F.P. Spalding, D.B. “Measurements of entrainment by axisymmetrical turbulent jets J. Fluid Mech. 11 21 32 1961
- Rizk, W. “Experimental studies of the mixing processes and flow configurations in two-cycle engine scavenging,” Proceedings of the IMECHE, Series E 172 417 424 1958
- Miyake, M. Biwa, T. Endoh, Y. Shimotsu, M. Murakami, S. Komoda, T “The development of high output, highly efficient gas burning diesel engines,” Paper D11.2, CIMAC Conference Paris 1983
- Chepakovich, A. “Visualization of transient single- and two-phase jets created by diesel engine injectors,” University of British Columbia 1993
- Abraham, J. “Entrainment characteristics of transient gas jets,” Numerical Heat Transfer, Part A . 30 3478 364 1996
- Schlichting, H. Boundary Layer Theory McGraw-Hill New York 1976
- Settles, G. Schlieren and shadowgraph techniques: visualizing phenomena in transparent media New York Springer 2001
- Ewan, B.C.R. Moodie, K. “Structure and velocity measurement in underexpanded jets,” Combustion Science and Technology 45 175 288 1986
- Birch, A.D. Brown, M.G. Dodson, M.G. Swaffield, F. “The structure and concentration decay of high pressure jets of natural gas,” Combustion Science and Technology 36 249 261 1984
- Naber, J.D. Siebers, D.L. “Effects of gas density and vaporization on penetration and dispersion of diesel sprays,” SAE Paper 960034 1996