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http://dx.doi.org/10.3795/KSME-B.2010.34.7.703

Shape Optimization of a Rotating Cooling Channel with Pin-Fins  

Moon, Mi-Ae (Dept. of Mechanical Engineering, Inha Univ.)
Husain, Afzal (Dept. of Mechanical Engineering, Inha Univ.)
Kim, Kwang-Yong (Dept. of Mechanical Engineering, Inha Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.7, 2010 , pp. 703-714 More about this Journal
Abstract
This paper describes the design optimization of a rotating rectangular channel with staggered arrays of pin-fins by Kriging metamodeling technique. Two non-dimensional variables, the ratio of the height to the diameter of the pin-fins and the ratio of the spacing between the pin-fins to the diameter of the pin-fins are chosen as the design variables. The objective function that is a linear combination of heat transfer and friction loss related terms with a weighting factor is selected for the optimization. To construct the Kriging model, objective function values at 20 training points generated by Latin hypercube sampling are evaluated by a three-dimensional Reynolds-averaged Navier-Stokes (RANS) analysis method with the SST turbulence model. The Kriging model predicts the objective function value that agrees well with the value calculated by the RANS analysis at the optimum point. The objective function is reduced by 11% by the optimization of the channel.
Keywords
Pin-Fin; Optimization; Heat Transfer; RANS Analysis; Kriging Model;
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