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http://dx.doi.org/10.3795/KSME-B.2011.35.1.001

Study on Pressure Drop Optimization in Flow Channel with Two Diameters by Using Constructal Theory  

Cho, Kee-Hyeon (Dept. of Mechanical Engineering, Pohang University of Science and Technology (POSTECH))
Lee, Jae-Dal (Dept. of Mechanical Engineering, Pohang University of Science and Technology (POSTECH))
Kim, Moo-Hwan (Dept. of Mechanical Engineering, Pohang University of Science and Technology (POSTECH))
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.1, 2011 , pp. 1-8 More about this Journal
Abstract
An analytical study on the flow resistance of tree-shaped channel-flow architectures was carried out based on the principle of the constructal law; the evolutionary increase in the access to currents that flow through the channels with improvements in the flow configurations were studied in a square domain using two diameters. Two types of tree-shaped configurations were optimized. The minimized global flow resistance decreased steadily as the system size $N^2$ increased. From the two channel configurations, the one that resulted in better pressure drop was selected. Further, it was shown that the system performance can be enhanced by adopting the second tree-shaped configurations when the system size is greater than $18^2$.
Keywords
Constructal Law; Cooling Channel; Pressure Drop; Optimization;
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