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雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

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雾化与喷雾

DOI: 10.1615/AtomizSpr.v7.i5.50
pages 519-530

DISINTEGRATION OF LIQUID JETS FROM A COAXIAL DUAL NOZZLE, PART II: SURFACE WAVE AND ITS FREQUENCY ANALYSIS

Kenji Amagai
Department of Mechanical System Engineering, Gunma University, Kiryu, Gunma, Japan
Masataka Arai
Division of Mechanical Science and Technology, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan; Tokyo Denki University
Soo-Young No
Dept. of Biosystems Engineering, Chungbuk National University, South Korea

ABSTRACT

This work is the second part of a series to investigate the disintegration of a liquid jet from coaxial dual nozzles. By employing a new approach of frequency analysis, the development of surface wave motions and the breakup mode of a liquid jet from single and coaxial dual nozzles have been discussed. The regularities of the surface wave and disintegration in the liquid column were evaluated with the power spectrum and autocorrelation of wave signals obtained by a photo sensor. The characteristics of surface wave development in the liquid column of dual nozzles were observed in every breakup mode of the jet. In the case of disintegration with high regularity, the breakup length was shortened. By using coaxial dual nozzle, the possibility of controlling the breakup length or disintegration mode as well as the internal velocity profile was achieved.


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