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Atomization and Sprays
Fator do impacto: 1.262 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v1.i4.10
pages 349-366

WAVE CHARACTERISTICS OF LIQUID JETS FROM AIRBLAST COAXIAL ATOMIZERS

Hasan Eroglu
Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
Norman Chigier
Department of Mechanical Engineering Carnegie-Mellon University, Pittsburgh, PA 15213-3890

RESUMO

Results of wavelength and frequency measurements are presented for liquid jets issuing from airblast coaxial atomizers. The liquid jet surface wavelengths were measured from the photographs for liquid jet velocity ranges of 1.1−18.2 m/s and air velocity ranges of 45.8−130 m/s. Frequencies were measured using a laser beam attenuation technique. The results show that wavelengths decrease with the liquid and gas jet velocities. The frequency band of the jet surface oscillations increased with the liquid jet velocity. Average frequencies were found to increase with both the liquid and the gas jet velocities. The resulting wave propagation velocities were insensitive to the variation of these velocities.


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