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International Journal of Applied Mechanics and Engineering

The Journal of University of Zielona Góra

Editor-in-Chief: Walicki, Edward

4 Issues per year

CiteScore 2016: 0.12

SCImago Journal Rank (SJR) 2016: 0.127
Source Normalized Impact per Paper (SNIP) 2016: 0.063

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Optimization of Pin Fin Heat Sink by Application of CFD Simulations and Doe Methodology with Neural Network Approximation

K. Kasza / Ł. Malinowski / I. Królikowski
Published Online: 2013-06-08 | DOI: https://doi.org/10.2478/ijame-2013-0022

A design optimization of a staggered pin fin heat sink made of a thermally conductive polymer is presented. The influence of several design parameters like the pin fin height, the diameter, or the number of pins on thermal efficiency of the natural convection heat sink is studied. A limited number of representative heat sink designs were selected by application of the design of experiments (DOE) methodology and their thermal efficiency was evaluated by application of the antecedently validated and verified numerical model. The obtained results were utilized for the development of a response surface and a typical polynomial model was replaced with a neural network approximation. The particle swarm optimization (PSO) algorithm was applied for the neural network training providing very accurate characterization of the heat sink type under consideration. The quasi-complete search of defined solution domain was then performed and the different heat sink designs were compared by means of thermal performance metrics, i.e., array, space claim and mass based heat transfer coefficients. The computational fluid dynamics (CFD) calculations were repeated for the most effective heat sink designs.

Keywords : heat transfer; design optimization; heat sink; neural network approximation; numerical modeling; thermally conductive polymer

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About the article

Published Online: 2013-06-08

Published in Print: 2013-06-01

Citation Information: International Journal of Applied Mechanics and Engineering, Volume 18, Issue 2, Pages 365–381, ISSN (Print) 1734-4492, DOI: https://doi.org/10.2478/ijame-2013-0022.

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