The heat dissipation performance was investigated by temperature evolution of a heat sink under natural convection by infrared (IR) camera, and results showed that the heat dissipation enhancement could be up to 25%. In this paper, we present a study of micro structuring on polymer-based flexible substrate coupled with aluminum-alloy heat sink. Optimization for heat dissipation plays a significant role in energy saving and high-efficiency utilizing of integrated electronics. To download this paper, you may use this personalized Share Link (before August 16, 2019): Adopting the perforation technique has been discussed in detail, as well as significant experimental and numerical information has been reported in this article. On the other hand, the perforated fins offer an outstanding hydraulic performance compared to the solid ones since the flow friction factor and the required pumping power will be less, particularly with the increased number of perforations. Further, increasing the size and number of perforations promotes the convective heat transfer process. The findings of this investigation show that the thermal performance of the perforated fins is superior over the non-perforated ones with a reduction in fin temperature up to 8.5 ☌. An excellent agreement has been observed between the experimental and numerical results. The effect of the circular perforations at different perforation number and size, airflow velocity, and different input powers on the thermal and hydraulic performance of those fins, at a constant perforation area of 24 cm2, has been examined. This study aims at experimentally and numerically evaluating the performance of fins with and without perforated geometry under forced convection heat transfer. Finally, the results are verified with commercial software for different case studies, and its potential to be extended to other fields of engineering is evident.Įxtended surfaces are commonly adopted as a thermal management technique for heat transfer augmentation owing to their ability to facilitate an increment in the available surface area, and hence, the total heat dissipation. The finite element solution engine is built by implementing the energy balance equations in their weak formulation in Firedrake, using its solver PETSc, the mesh generator GMSH and the post-processor Paraview, thus creating a fully OSS-based Python framework. The performance of parallel computing is assessed in terms of processing time. Several geometrically complex heat sinks commonly used in the electronics industry are considered application examples. Therefore, multiple open-source tools are integrated into this work to solve the heat transfer equation, including conduction, convection, and radiation. Hence, finite element analysis (FEA) using open-source software (OSS) becomes a prominent candidate in this case. However, when the thermal problem introduces complexities in geometry and physics, the availability of licenses for high-performance computing could represent a limitation to achieving results in a reasonable time. The modeling of heat transfer phenomena in thermal systems has been extensively explored in industry and academia by using the finite element method (FEM) with commercial software.
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