A Study of Two-Phase Swirl Spray Characteristics on Dual Airblast Velocity Ratio

이중공기공급 속도비에 따른 이류체 선회분무 특성 연구

  • 강신재 (전북대학교 기계공학부 자동차신기술연구소) ;
  • 오제하 (전북지역 자동차 부품금형 기술혁신 센터) ;
  • 송기정 (전북대학교 정밀기계대학원) ;
  • 노병준 (전북대학교 기계공학부 자동차신기술연구소)
  • Published : 2000.09.30

Abstract

In this study, spray characteristics of a dual airblast atomizer are addressed. Three dimensional characteristics of a dual airblast atomizer with air swirl are measured to provide the significant data. The liquid flow rate was fixed at 0.06 kg/min, and atomizing air was controlled at the liquid-air mass ratio of 4.0. The performance of the spray with co-swirl and counter-swirl flow was investigated at each point in the developed spray region using a three-component phase Doppler particle analyzer. This instrument was also used to evaluate the concentration profiles. The three dimensional mean velocity were investigated of present flow characteristics of the dual airblast atomizer. In addition, drop size distributions, mean droplet size profile, and droplet concentration were analyzed to understand atomization characteristics. This experimental results can be conveniently utilized for the preliminary design of gas turbine engines for aircraft.

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