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Effects of Geometry of a Boot-Shaped Rib on Heat Transfer and Pressure Drop

신발형 리브의 형상변화가 열전달 및 압력 강하에 미치는 영향

  • Seo, Jae-Won (Department of Mechanical Engineering, Graduate School, Inha University) ;
  • Kim, Jun-Hee (Department of Mechanical Engineering, Graduate School, Inha University) ;
  • Kim, Kwang-Yong (Department of Mechanical Engineering, Inha University)
  • 서재원 (인하대학교 대학원 기계공학과) ;
  • 김준희 (인하대학교 대학원 기계공학과) ;
  • 김광용 (인하대학교 기계공학부)
  • Received : 2014.11.03
  • Accepted : 2015.02.02
  • Published : 2015.06.01

Abstract

This paper deals with a parametric study on boot-shaped ribs in a rectangular cooling channel. Numerical analysis of the flow and heat transfer was performed using three-dimensional Reynolds averaged Navier-Stokes equations with the Speziale, Sarkar and Gatski turbulence model. The parametric study was performed for the parameters, tip width-to rib width, tip height-to-rib height, rib height-to-channel height, and rib height-to-width ratios. To assess the cooling performance and friction loss, Numsselt number and friction factor were defined as the performance parameter, respectively. The results showed that the cooling performance and friction loss were seriously affected by the four geometric parameters.

Keywords

References

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