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A pseudo 3D cooling heat sink model designed by multi-objective topology optimization method

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Abstract

This paper designs a water-cooled pseudo 3D heat sink structure using two-layer heat sink model applying the topology optimization method (TOM) based on rational approximation of material properties (RAMP) functions. The governing equations consist of the continuity, Navier–Stokes, and energy balance equations with forced convection and the optimization design problem is formulated as the minimization of power dissipation and thermal resistance. Compared with the one-layer heat sink model in terms of optimized design, temperature distribution and velocity distribution, the two-layer heat sink model was proved to have better heat transfer capability because it does not ignore the resistance in fluid channel regions. The optimized heat sink structure is manufactured, and measured about temperature distributions on the upper surface of the heat sink and pressure drop between inlet and outlet. Through the comparison of temperature distribution and pressure drop between numerical results and experimental tests under different spacial position and Reynolds numbers, the physical validity of the developed model is verified.

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Funding

This work was supported by the Science and Technology Commission under Grant Number 19-163-00-KX-002-016-02; Science and Technology Commission of Sichuan Province under Grant Number 2019YFG0335.

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Authors and Affiliations

  1. College of Electronics and Information Engineering, Sichuan University, Chengdu, 610064, China

    Zhang Tiantian, Yaling Fu, Yang Xiaoqing & Zhou Jie

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  1. Zhang Tiantian
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  2. Yaling Fu
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  3. Yang Xiaoqing
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  4. Zhou Jie
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Correspondence to Yaling Fu.

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Zhang, T., Fu, Y., Yang, X. et al. A pseudo 3D cooling heat sink model designed by multi-objective topology optimization method. Meccanica 57, 2101–2116 (2022). https://doi.org/10.1007/s11012-022-01554-0

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