Compressible transient turbulent gaseous jets are formed when natural gas is injected directly into a diesel engine. Multi-dimensional simulations are used to analyze the penetration, mixing, and combustion of such gaseous fuel jets. The capability of multi-dimensional numerical simulations, based on the k-ε turbulence model, to reproduce the experimentally verified penetration rate of free transient jets is evaluated. The model is found to reproduce the penetration rate dependencies on momentum, time, and density, but is more accurate when one of the k-ε coefficients is modified. The paper discusses other factors affecting the accuracy of the calculations, in particular, the mesh density and underexpanded injection conditions. Simulations are then used to determine the impact of chamber turbulence, injection duration, and wall contact on transient jet penetration. The model also shows that gaseous jets and evaporating diesel sprays with small droplet size mix at much the same rate when injected with equivalent momentum injection rate. [S0098-2202(00)02304-X]
Skip Nav Destination
Article navigation
December 2000
Technical Papers
Turbulent Transient Gas Injections
P. Ouellette,
P. Ouellette
Westport Research Inc., 1691 West 36th Avenue, Vancouver, British Columbia, Canada, V6N 2P9
Search for other works by this author on:
P. G. Hill
P. G. Hill
Department of Mechanical Engineering, University of British Columbia, 2324 Main Mall, Vancouver, British Columbia, Canada, V6T 1Z4
Search for other works by this author on:
P. Ouellette
Westport Research Inc., 1691 West 36th Avenue, Vancouver, British Columbia, Canada, V6N 2P9
P. G. Hill
Department of Mechanical Engineering, University of British Columbia, 2324 Main Mall, Vancouver, British Columbia, Canada, V6T 1Z4
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division July 13, 1999; revised manuscript received July 18, 2000. Associate Technical Editor: D. Telionis.
J. Fluids Eng. Dec 2000, 122(4): 743-752 (10 pages)
Published Online: July 13, 1999
Article history
Revised:
July 13, 1999
Revised:
July 18, 2000
Citation
Ouellette, P., and Hill, P. G. (July 13, 1999). "Turbulent Transient Gas Injections ." ASME. J. Fluids Eng. December 2000; 122(4): 743–752. https://doi.org/10.1115/1.1319845
Download citation file:
Get Email Alerts
Entrance Lengths for Fully Developed Laminar Flow in Eccentric Annulus
J. Fluids Eng (May 2025)
Switching Events of Wakes Shed From Two Short Flapping Side-by-Side Cylinders
J. Fluids Eng (May 2025)
Related Articles
Closure to “Discussion of ‘Turbulent Gas Injections’ ” (2000, ASME J. Fluids Eng., 122, p. 752)
J. Fluids Eng (December,2000)
A Comparison of Single and Multiphase Jets in a Crossflow Using Large Eddy Simulations
J. Eng. Gas Turbines Power (January,2007)
Approximate Similarity of Confined Turbulent Coaxial Jets
J. Fluids Eng (September,2001)
Detailed Numerical Simulations of the Primary Atomization of a Turbulent Liquid Jet in Crossflow
J. Eng. Gas Turbines Power (June,2010)
Related Proceedings Papers
Related Chapters
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Fuel Nozzle Geometry Effects on Cavitation and Spray Behavior at Diesel Engine Conditions
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Internal and Near Nozzle Flow Simulations of Gasoline Multi-Hole Injector (ECN Spray G) with Transient Needle Motion
Proceedings of the 10th International Symposium on Cavitation (CAV2018)