Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Atomization of Annular Liquid Sheet with Core Air Flow - SMD Variation with Gas/Liquid Injection Velocity

중심 공기류를 이용한 환상 액막 미립화에 관한 연구-기/액 분사유속에 따른 입경 변화 고찰

  • 최철진 (한국과학기술원 기계공학과) ;
  • 이상용 (한국과학기술원 기계공학과)
  • Published : 2001.06.27
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Abstract

The atomization characteristics of an annular liquid (water) sheet of small radius with a core gas (air) flow were studied. Different sizes of annular gaps (0.2, 0.4 and 0.8 mm) were tested to find the effect of liquid sheet thickness on SMD. The inner diameter of the gas port for the core gas flow was 4 mm. Cross-section averaged SMD was measured for various liquid and gas velocities. Regions of the SMD decrease with the increase of the liquid velocity always existed regardless of the liquid sheet thickness. This attributes to the transition of the flow patterns of spray and also to the aerodynamic interaction between the atomizing gas and the ripples on the liquid sheet surface.

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