Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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An Experimental Study on Temperature and Velocity Fields of the Turbulent Flows Horizontal Cylindrical Tube by Using Thermo-sensitive Liquid Crystal

수평원통 관에서 감온액정을 이용한 난류유동의 온도 및 속도장에 관한 실험적 연구

  • 장태현 (경남대학교 기계자동화공학부) ;
  • 도덕희 (한국해양대학교 기계정보공학부)
  • Published : 2003.11.01
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Abstract

An experimental investigation was performed to study the characteristics of turbulent water flow in a horizontal circular tube by using liquid crystal. To determine some characteristics of the turbulent flow, 2D PIV technique is employed for velocity measurement and liquid crystal is used for heat transfer experiments in water. Temperature visualization was made quantitatively by calibrating the color of the liquid crystal versus temperature using various approaches (TLC technique: Thermochromic Liquid Crystal), and a neural-network algorithm was applied to the color-to-temperature calibration. This study shoud the temperature and time-mean velocity distribution for Re = 2,436, 2,500 and 2,724 along longitudinal sections and the results appear to be physically reasonable.

Keywords

References

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