Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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A Study on the Flow Characteristics of Developing Transitional Steady Flows in a Curved Duct by Using Laser Doppler Velocimeter (I)

곡관덕트에서 LDV를 이용한 천이정상유동의 유동특성에 관한 연구(I)

  • 봉태근 (목포해양대학교 기관공학부) ;
  • 박길문 (조선대학교 공과대학 기계공학과)
  • Published : 2000.11.01
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Abstract

In this paper, an experimental investigation of characteristics of developing transitional steady flows in a square-sectional 180 urved duct is presented. The experimental study is carried out to measure axial velocity profiles by using Laser Doppler Velocimeter (LDV) system. The flow development is found to depend upon Dean number and curvature ratio. For transitional steady flows, the maximum velocity position of axial velocity profiles begins to incline toward the outer wall from $\phi$=$30^{\circ}$bended angle, velocity profiles in center of the duct have lower value than those of the inner and outer walls because of the centrifugal forces.

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References

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