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

The Korean Society of Mechanical Engineers (대한기계학회)
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Temperature field measurement of convective flow in a Hele-Shaw Cell with TLC and color image processing

TLC와 컬러화상처리를 이용한 Hele-Shaw Cell 내부 대류 온도장 측정

  • Yun, Jeong-Hwan (Dept. of Mechanical Engineering, Graduate School of Pohang University of Science and Technology) ;
  • Do, Deok-Hui ;
  • Lee, Sang-Jun (Dept. of Mechanical Engineering, Graduate School of Pohang University of Science and Technology)
  • 윤정환 (포항공과대학교 대학원 기계공학과) ;
  • 도덕희 (한국해야대학교 냉동공조학과) ;
  • 이상준 (포항공과대학교 기계공학과)
  • Published : 1996.03.01
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Abstract

Variation of temperature field in a Hele-Shaw convection cell was measured by using a HSI true color image processing system and TLC(Thermochromic Liquid Crystal) solution. The relationship between the hue value of TLC color image and real temperature was obtained and this calibration result was used to measure the true temperature. The temperature field in the Hele-Shaw convection cell shows periodic characteristics of 45 sec at Ra = 9.3 * 10$\^$6/. The temperature field measurement technique developed in this study was proved to be a useful and powerful tool for analyzing the unsteady thermal fluid flows.

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