An experimental investigation was conducted to study the effects of increased ambient pressure (up to ) and increased nozzle pressure drop (up to ) on the cone angles for sprays produced by pressure-swirl atomizers having varying amounts of initial swirl. This study extends the classical results of DeCorso and Kemeny, (1957, “Effect of Ambient and Fuel Pressure on Nozzle Spray Angle,” ASME Transactions, 79(3), pp. 607–615). Shadow photography was used to measure cone angles at , 20, 40, and 60. Our lower pressure results for atomizer swirl numbers of 0.50 and 0.25 are consistent with those of DeCorso and Kemeny, who observed a decrease in cone angle with an increase in nozzle pressure drop, , and ambient density, , until a minimum cone angle was reached when (equivalent to ). Results for atomizers having higher initial swirl do not match the DeCorso and Kemeny results as well, suggesting that their correlation be used with caution. Another key finding is that an increase in to a value of leads to continued decrease in cone angle, but that a subsequent increase to has little effect on cone angle. Finally, there was little effect of nozzle pressure drop on cone angle, in contrast to findings of previous workers. These effects are hypothesized to be due to gas entrainment.
Skip Nav Destination
e-mail: sojka@ecn.purdue.edu
Article navigation
November 2008
Research Papers
Pressure-Scaling of Pressure-Swirl Atomizer Cone Angles
D. R. Guildenbecher,
D. R. Guildenbecher
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN 47906-2014
Search for other works by this author on:
R. R. Rachedi,
R. R. Rachedi
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN 47906-2014
Search for other works by this author on:
P. E. Sojka
P. E. Sojka
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
e-mail: sojka@ecn.purdue.edu
Purdue University
, West Lafayette, IN 47906-2014
Search for other works by this author on:
D. R. Guildenbecher
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN 47906-2014
R. R. Rachedi
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN 47906-2014
P. E. Sojka
Maurice J. Zucrow Laboratories, School of Mechanical Engineering,
Purdue University
, West Lafayette, IN 47906-2014e-mail: sojka@ecn.purdue.edu
J. Eng. Gas Turbines Power. Nov 2008, 130(6): 061501 (5 pages)
Published Online: August 22, 2008
Article history
Received:
June 29, 2007
Revised:
March 1, 2008
Published:
August 22, 2008
Citation
Guildenbecher, D. R., Rachedi, R. R., and Sojka, P. E. (August 22, 2008). "Pressure-Scaling of Pressure-Swirl Atomizer Cone Angles." ASME. J. Eng. Gas Turbines Power. November 2008; 130(6): 061501. https://doi.org/10.1115/1.2939004
Download citation file:
Get Email Alerts
Cited By
Image-based flashback detection in a hydrogen-fired gas turbine using a convolutional autoencoder
J. Eng. Gas Turbines Power
Fuel Thermal Management and Injector Part Design for LPBF Manufacturing
J. Eng. Gas Turbines Power
An investigation of a multi-injector, premix/micromix burner burning pure methane to pure hydrogen
J. Eng. Gas Turbines Power
Related Articles
A Systematic Approach
to Predicting Critical Heat Flux for Inclined
Sprays
J. Electron. Packag (December,2007)
Effects of Fuel Nozzle Displacement on Pre-Filming Airblast Atomization
J. Eng. Gas Turbines Power (January,2001)
Liquid Fuel Placement and Mixing of Generic Aeroengine Premix Module at Different Operating Conditions
J. Eng. Gas Turbines Power (October,2003)
Measurement of Biodiesel Blend and Conventional Diesel Spray Structure Using X-Ray Radiography
J. Eng. Gas Turbines Power (November,2009)
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)