Effects of nozzle inner flow on liquid sheet dynamics and primary atomization

Chihiro Inoue, Toshinori Watanabe, Takehiro Himeno, Seiji Uzawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Aiming at elucidating the relationship between injector inner flow, especially injection velocity profiles, and atomization characteristics of liquid sheet, experimental measurement, numerical and theoretical analysis were carried out. Liquid spacial distribution produced by atomization of axisymmetric sheet, which was created by collision of two water jets in opposite direction, was experimentally obtained utilizing paternator. The amplitude of the liquid sheet oscillation was theoretically developed. The numerical results of three dimensional unsteady atomization process through Kelvin-Helmholtz type instability showed qualitative resemblance with corresponding experimental results and theoretical analyses. It was clarified that non-uniform injection velocity profile resulted in velocity distribution with inflection point inside the sheet, thus the sheet became unstable and enhanced atomization. The effect of injection velocity profile on atomization of two dimensional plane jet was also clearly represented.

Original languageEnglish
Title of host publication13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13
Pages623-630
Number of pages8
Publication statusPublished - Dec 1 2010
Externally publishedYes
Event13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13 - Honolulu, HI, United States
Duration: Apr 4 2010Apr 7 2010

Publication series

Name13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13

Other

Other13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13
CountryUnited States
CityHonolulu, HI
Period4/4/104/7/10

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Inoue, C., Watanabe, T., Himeno, T., & Uzawa, S. (2010). Effects of nozzle inner flow on liquid sheet dynamics and primary atomization. In 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13 (pp. 623-630). (13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2010, ISROMAC-13).