Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Heat Transfer and Friction in Rectangular Convergent Channels with Ribs on One Wall

  • Kim, Won-Cheol (Dpt. of Mechanical and System Engineering, Institute of Marine Industry, Gyeongsang National University) ;
  • Lee, Myung-Sung (Dpt. of Mechanical and System Engineering, Institute of Marine Industry, Gyeongsang National University) ;
  • Bae, Sung-Taek (Korea Institute of Industrial Technology) ;
  • Ahn, Soo-Whan (Dpt. of Mechanical and System Engineering, Institute of Marine Industry, Gyeongsang National University)
  • Published : 2014.04.30
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Abstract

The local heat transfer of developed turbulent flows in the stationary ribbed rectangular convergent channels has been investigated experimentally. The rectangular convergent channels with one ribbed surface only have the inclination of $0.72^{\circ}$ and $1.43^{\circ}$ at which the ribbed wall is manufactured with a fixed rib height (e) of 10 mm and the ratio of rib spacing (p) to height (e) =10. The measurement was conducted within the range of Reynolds numbers from 15,000 to 89,000. The local heat transfer characteristics of the rectangular convergent channels are quite different from those of the ribbed square straight channel.

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References

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  1. Heat Transfer in a Two Wall Divergent Rectangular Channel with V-Shaped Ribs on One Wall vol.19, pp.5, 2015, https://doi.org/10.9726/kspse.2015.19.5.032
  2. Experiments of Drag Reduction of a Circular Cylinder Having a Front Square Prism vol.22, pp.2, 2018, https://doi.org/10.9726/kspse.2018.22.2.012