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http://dx.doi.org/10.9726/kspse.2016.20.5.066

Heat Transfer and Total Friction Factors in the Convergent Channels with V/⋀-shaped Ribs on Two Opposite Walls  

Lee, Myung-Sung (Gyeongnam Institute for Regional Program Evaluation)
Heo, Meo-Seong (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Jeong, Ui-Jae (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Park, Young-Joon (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Yoo, Jung-Hyun (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Im, Gun-Woo (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Ahn, Soo-Whan (Dpt. of Mechanical & System Engineering, Institute of Marine Industry, Gyeongsang National University)
Publication Information
Journal of Power System Engineering / v.20, no.5, 2016 , pp. 66-71 More about this Journal
Abstract
The measurements of heat transfer and total friction factors for turbulent flows in the convergent rectangular channels with two opposite in-line ribbed walls are reported. The study has covered three different angled ribs ($30^{\circ}$, $45^{\circ}$ and $60^{\circ}$) and Reynolds number in the range of 22,000 to 75,000. The channel, composing of ten isolated copper sections in the length of test section of 1 m, has the channel convergence ratio of $D_{ho}/D_{hi}=0.67$. The results show that the ribs pointing downstream (${\wedge}-shaped$) is somewhat greater than the ribs pointing upstream (V-shaped) in the dimensionless Nusselt number and total friction factors.
Keywords
$V/{\wedge}-shaped$ ribs; Rib angle of attack; Heat transfer; Convergent channel; Total friction factor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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