Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on Numerical Analysis for Flow Characteristics in Ribbed Tube

열교환기내 리브드 튜브의 유동 특성에 관한 수치해석적 연구

  • 전정도 (동아대학교 대학원 기계공학과) ;
  • 전언찬 (동아대학교 기계공학과) ;
  • 정희균 (성진지오텍(주) 기술연구소) ;
  • 이치우 (경남과학기술대학교 자동차공학과)
  • Received : 2011.07.21
  • Accepted : 2011.08.10
  • Published : 2011.08.31
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Abstract

A ribbed tube consumes more power to transport the fluid by comparing with flat one. After the tangential velocity component occurs, its contact area with the ribbed tube becomes large and it enables the effective energy transportation. The flow characteristics vary according to the geometry of tube rib. This study aims to investigate the flow characteristics of fluids working at Reynolds numbers of 20,000, 40,000, 60,000 and 80,000 with the air at $15^{\circ}C$ in the ribbed test tube high 1mm and wide 8.48mm. As the flow characteristics are included with the states of fully developed hydrodynamical region, axial velocity vector distribution and non-dimensional velocity distribution, they are shown with the physical validity.

Keywords

References

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