Liquid sheet dynamics and primary breakup characteristics at impingement type injector

Chihiro Inoue, Toshinori Watanabe, Takehiro Himeno

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

4 Citations (Scopus)

Abstract

Aiming at elucidating the relationship between injection conditions, especially injection velocity profiles, and atomization characteristics of liquid sheet at the impingement type of injector, numerical analysis, experimental observation and theoretical analysis were carried out. For computing atomization phenomena, a numerical method has been developed. The method was verified through quantitative comparisons with corresponding experiment of pinch off. Then experimental and theoretical studies were performed on atomization of axisymmetric liquid sheet, which was produced by collision of two water jets in opposite direction. The numerical results of the atomization process through Kelvin-Helmholtz type of instability showed qualitative resemblance with corresponding theoretical analyses. It was clarified that non-uniform injection velocity profile resulted in velocity distribution with inflection point inside the sheet. Thus the sheet with non-uniform injection velocity profile tended to be unstable and enhanced atomization. The effect of injection velocity profile on atomization at the impingement type injector was also represented.

Original languageEnglish
Title of host publication45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Publication statusPublished - Dec 1 2009
Externally publishedYes
Event45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - Denver, CO, United States
Duration: Aug 2 2009Aug 5 2009

Other

Other45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
CountryUnited States
CityDenver, CO
Period8/2/098/5/09

Fingerprint

Drop breakup
impingement
atomizing
Atomization
velocity profile
injectors
velocity distribution
liquid
injection
Liquids
liquids
theoretical study
numerical method
hydraulic jets
inflection points
experimental study
collision
Velocity distribution
numerical analysis
Numerical analysis

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Space and Planetary Science
  • Energy(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Inoue, C., Watanabe, T., & Himeno, T. (2009). Liquid sheet dynamics and primary breakup characteristics at impingement type injector. In 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Liquid sheet dynamics and primary breakup characteristics at impingement type injector. / Inoue, Chihiro; Watanabe, Toshinori; Himeno, Takehiro.

45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. 2009.

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

Inoue, C, Watanabe, T & Himeno, T 2009, Liquid sheet dynamics and primary breakup characteristics at impingement type injector. in 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Denver, CO, United States, 8/2/09.
Inoue C, Watanabe T, Himeno T. Liquid sheet dynamics and primary breakup characteristics at impingement type injector. In 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. 2009
Inoue, Chihiro ; Watanabe, Toshinori ; Himeno, Takehiro. / Liquid sheet dynamics and primary breakup characteristics at impingement type injector. 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. 2009.
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