Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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STUDY ON COOLING PERFORMANCE BY CONVECTIVE HEAT TRANSFER WITH DIFFERENT DISK BRAKE SHAPES

브레이크 디스크 형상에 따른 대류열전달에 의한 방열성능 연구

  • Park, C.W. (Dept. of Mechanical Automotive Engineering, Catholic Univ of Daegu) ;
  • Lee, D.R. (Dept. of Mechanical Automotive Engineering, Catholic Univ of Daegu)
  • 박찬우 (대구가톨릭대학교 기계자동차공학부) ;
  • 이동렬 (대구가톨릭대학교 기계자동차공학부)
  • Received : 2016.02.17
  • Accepted : 2016.03.28
  • Published : 2016.03.31
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Abstract

This research is to numerically investigate the convective cooling performance in the Disk brake. Research concentrates on the heat transfer coefficient and cooling performance which are selected with cooling local locations. Cooling performance of the Hole disk has been compared by Ventilated Disk. According to the results of heat transfer on the disk brake, activated velocity distributions more appear in the Hole disk. This is due to the fact that a number of hole units have exactly 120 on the surface of the hole disk. Therefore, velocity distributions of hole disk brake is better activated than Ventilated disk. According to the calculations of Nusselt number between surface and atmosphere in the interested cooling area, average value of cooling effect has been increased 13.5% by the hole disk at driving of speed 65 km/h situation and grown 18% by the hole disk at driving speed of 100 km/h. Due to the flow of air through the hole route, cooling performance of the hole disk was very excellent. In addition, cooling effect on edge of the bottom is better than the vicinity of center.

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References

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