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

The Korean Society of Mechanical Engineers (대한기계학회)
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Effects of Eccentric Ratio Between Stationary Upstream Circular Cylinders on Heat Transfer of a Heated Downstream Cylinder

정지된 상류의 원형실린더 사이의 편심률이 후방실린더의 열전달에 미치는 영향

  • 유갑종 (경북대학교 기계공학부) ;
  • 박철우 (경북대학교 기계공학부) ;
  • 장충선 (경북대학교 대학원 기계공학과)
  • Published : 2004.11.01
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Abstract

The influence of eccentric(=staggeredness) ratio between stationary upstream circular cylinders on heat transfer characteristics of a heated downstream circular cylinder installed in a channel was investigated experimentally. In order to enhance the heat transfer rate of the heated downstream cylinder surface, we have changed the configuration of upstream cylinder. As a result, we were able to obtain local time-averaged convective heat transfer enhancement of the heated cylinder by the relative replacement of upstream cylinder. This is basically attributed to the mean flow structure change, such as flow separation, vortex shedding, and recirculation of the upstream cylinder including the reattachment and new thermal boundary developed at the downstream cylinder which are the results of the increase of the staggeredness ratio.

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References

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