The influence of initial liquid film thickness on mean drop size and drop-size distribution was examined using two specially designed airblast atomizers. Both were constructed to produce a flat liquid sheet across the centerline of a two-dimensional air duct with the liquid sheet exposed on both sides to high velocity air. In one case a thin film of uniform thickness was produced by injecting the liquid through a porous plate located just upstream of the atomizing edge. The film thickness, t, was then measured by a needle contact device. In the second design the fuel entered the air stream through a thin slot whose height could be adjusted accurately to vary and control the initial film thickness. Drop sizes were measured by the well-established light-scattering technique. From analysis of the processes involved, and from correlation of the experimental data, it was found that high values of liquid viscosity and liquid flow rate result in thicker films. It was also observed that thinner liquid films produce better atomization, according to the relationship, SMD ∝ t0.38.
Skip Nav Destination
Article navigation
July 1980
This article was originally published in
Journal of Engineering for Power
Research Papers
The Influence of Liquid Film Thickness on Airblast Atomization
N. K. Rizk,
N. K. Rizk
Mechanical Department, Cairo University, Giza, Egypt
Search for other works by this author on:
A. H. Lefebvre
A. H. Lefebvre
School of Mechanical Engineering, Purdue University, West Lafayette, Ind.
Search for other works by this author on:
N. K. Rizk
Mechanical Department, Cairo University, Giza, Egypt
A. H. Lefebvre
School of Mechanical Engineering, Purdue University, West Lafayette, Ind.
J. Eng. Power. Jul 1980, 102(3): 706-710 (5 pages)
Published Online: July 1, 1980
Article history
Received:
March 16, 1978
Online:
September 28, 2009
Citation
Rizk, N. K., and Lefebvre, A. H. (July 1, 1980). "The Influence of Liquid Film Thickness on Airblast Atomization." ASME. J. Eng. Power. July 1980; 102(3): 706–710. https://doi.org/10.1115/1.3230329
Download citation file:
Get Email Alerts
Cited By
Study Of Tandem Rotor Dual Wake Interaction With Downstream Stator Under Unsteady Numerical Approach
J. Eng. Gas Turbines Power
An Efficient Uncertainty Quantification Method Based on Inter-Blade Decoupling for Compressors
J. Eng. Gas Turbines Power (April 2025)
Experimental Design Validation of a Swirl-Stabilized Burner With Fluidically Variable Swirl Number
J. Eng. Gas Turbines Power (April 2025)
Experimental Characterization of a Bladeless Air Compressor
J. Eng. Gas Turbines Power (April 2025)
Related Articles
Internal Flow Effects in Prefilming Airblast Atomizers: Mechanisms of Atomization and Droplet Spectra
J. Eng. Gas Turbines Power (July,1986)
Modeling Wall Film Formation and Breakup Using an Integrated Interface-Tracking/Discrete-Phase Approach
J. Eng. Gas Turbines Power (March,2011)
Rupture of Thin Power-Law Liquid Film on a Cylinder
J. Appl. Mech (March,2001)
Droplet Entrainment From a Shear-Driven Liquid Wall Film in Inclined Ducts: Experimental Study and Correlation Comparison
J. Eng. Gas Turbines Power (October,2002)
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
Investigation on Cavitating Flow of a Novel High Pressure Nozzle with Grooved Needle
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Boundary Layer Analysis
Centrifugal Compressors: A Strategy for Aerodynamic Design and Analysis