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http://dx.doi.org/10.3795/KSME-B.2006.30.7.700

Design Optimization of Dimple Shape to Enhance Turbulent Heat Transfer  

Choi Ji-Yong (인하대학교 대학원 기계공학과)
Kim Kwang-Yong (인하대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.7, 2006 , pp. 700-706 More about this Journal
Abstract
This study presents a numerical procedure to optimize the shape of dimple surface to enhance turbulent heat transfer in a rectangular channel. The response surface based optimization method is used as an optimization technique with Reynolds-averaged Wavier-Stokes analysis of fluid flow and heat transfer with shear stress transport (SST) turbulence model. The dimple depth-to-dimple print diameter ratio, channel height-to-dimple print diameter ratio, and dimple print diameter-to-pitch ratio are chosen as design variables. The objective function is defined as a linear combination of heat transfer related term and friction loss related term with a weighting factor. full factorial method is used to determine the training points as a mean of design of experiment. The optimum shape shows remarkable performance in comparison with a reference shape.
Keywords
Numerical Optimization; Turbulent Heat Transfer; Dimpled Surface; Response Surface Method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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