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http://dx.doi.org/10.5293/kfma.2015.18.3.066

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

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)
Publication Information
The KSFM Journal of Fluid Machinery / v.18, no.3, 2015 , pp. 66-73 More about this Journal
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
Boot-Shaped Rib; Cooling Channel; Nusselt Number; Reynolds-Averaged Navier-Stokes Equations;
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