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NUMERICAL ANALYSIS OF CONJUGATE HEAT TRANSFER INSIDE A THERMAL BOUNDARY LAYER CONSIDERING THE EFFECTS OF A FREE STREAM VELOCITY AND A THERMOCOUPLE POSITION

유속 및 열전대 위치의 영향을 고려한 열경계층 내부의 복합열전달 해석

  • Jeon, B.J. (Dept. of Energy System, Graduate School of Energy and Environment, Seoul Nat'l Univ. of Science and Technology) ;
  • Lee, J.A. (Dept. of Mechanical/Automotive Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Choi, H.G. (Dept. of Mechanical/Automotive Engineering, Seoul Nat'l Univ. of Science and Technology)
  • 전병진 (서울과학기술대학교 에너지환경대학원 에너지시스템공학과) ;
  • 이주안 (서울과학기술대학교 기계자동차공학과) ;
  • 최형권 (서울과학기술대학교 기계자동차공학과)
  • Received : 2012.12.06
  • Accepted : 2013.01.30
  • Published : 2013.03.31

Abstract

The error in measuring temperature profiles by thermocouple inside boundary layer mostly comes from the conduction heat transfer of the thermocouple. The error is not negligible when the conductivity of the thermocouple is very high. In this study, the effect of conduction heat transfer of the thermocouple on the temperature profile inside boundary layer was examined by considering both free-stream velocity and a thermocouple position. The conduction error of an E-type thermocouple was investigated by numerical analysis of three-dimensional conjugate heat transfer for various velocity profiles of boundary layer and thermocouple positions.

Keywords

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