Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Spray Characterization Using Planar Imaging Technique

평면 이미지 기법을 이용한 분무 특성 해석

  • 이경진 (서울대학교 항공우주공학과) ;
  • 정기훈 (서울대학교 항공우주공학과) ;
  • 윤영빈 (서울대학교 항공우주공학과) ;
  • 정경석 (한국기술교육대학교 동력기계공학과) ;
  • 정인석 (서울대학교 항공우주공학과)
  • Published : 2000.01.01
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Abstract

The characteristics of spray nozzle have been quantified with the measurement of fluorescence and Mie scattering images. To correct the attenuation of the incident light sheet, a sequential double-pass light sheet system and the geometrical averaging of two images was implemented. Quantitative mass flux distribution of spray was obtained from fluorescence image. 3-D image is reconstructed using 2-D radial images. Sauter mean diameter (SMD) distribution was determined using the ratio of fluorescence signal intensity and Mie scattering signal intensity and the values were quantified with PDP A data. The measurement of mass flux and SMD using planar imaging technique agee with PDP A data fairly well in the low density region. However, in dense region， there are significant errors caused by secondary scattering. It was found that the planar imaging technique provides many advantages over the point measurement technique, such as PDP A, and can be implemented for quantitative measurement, especially in low density region.

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References

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