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http://dx.doi.org/10.3795/KSME-B.2007.31.9.733

Shape Optimization of a Micro-Channel Using Kriging Model  

Husain, Afzal (인하대학교 대학원 기계공학과)
Kim, Kwang-Yong (인하대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.31, no.9, 2007 , pp. 733-740 More about this Journal
Abstract
Microchannel heat sink shape optimization is performed using Kriging method. Design variables relating to microchannel width, depth and fin width are selected, and thermal resistance has been taken as objective function. Design points are selected through a three-level fractional factorial design of sampling method. Navier-Stokes and energy equations for laminar flow and conjugate heat transfer are solved at these design points using a finite volume solver. Solutions are carefully validated with experimental results. Using the numerically evaluated objective function, a surrogate model (Kriging) is constructed and optimum point is searched by sequential quadratic programming. The process of shape optimization greatly improves the thermal performance of microchannel heat sink under constant pumping power.
Keywords
Trapezoidal Microchannel; Optimization Trchnique; Surrogate Model; Kriging; Navier-Stokes Equation;
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