Investigation of Turbulent Spray Disintegration Characteristics Depending on the Nozzle Configuration

The experimental measurements were carried out to examine turbulent disintegration characteristics ejecting from a counter-flowing internal mixing pneumatic nozzle under variable conditions of swirl angles and air pressures. The air injection pressure was varied from 60 kPa to 180 kPa and four count...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2002-04, Vol.16 (4), p.572-579
Main Authors: Lee, Sam Goo, Song, Kyu Keun, Rho, Byung Joon
Format: Article
Language:English
Subjects:
Aerodynamics
Disintegration
Exact sciences and technology
Fluid dynamics
Focusing
Fundamental areas of phenomenology (including applications)
Instrumentation for fluid dynamics
Multiphase and particle-laden flows
Nonhomogeneous flows
Nozzles
Physics
Sprayers
Sprays
Studies
Turbulence
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Summary:The experimental measurements were carried out to examine turbulent disintegration characteristics ejecting from a counter-flowing internal mixing pneumatic nozzle under variable conditions of swirl angles and air pressures. The air injection pressure was varied from 60 kPa to 180 kPa and four counter-flowing internal mixing nozzles with axi-symmetric tangential-drilled holes at swirl angle of 15°, 30°, 45°, and 60° to the central axis have been specially designed. The experimental results were quantitatively analyzed, focusing mainly on the comparison of turbulent atomization characteristics issuing from an internal mixing swirl nozzle. To illustrate the swirl phenomena, the distributions of mean velocities, turbulence intensities, volume flux, and SMD (Sauter Mean Diameter, or D^sub 32^) were comparatively analyzed.[PUBLICATION ABSTRACT]
ISSN:1226-4865
1738-494X
1976-3824
DOI:10.1007/BF03185087