Thermofluid modeling for concurrent size-topology optimization of heat sinks for planar motors

被引：0

作者：

Zhao J. ^{[1
]}

Zhang M. ^{[1
]}

Zhu Y. ^{[1
]}

Cheng R. ^{[1
]}

Li X. ^{[1
]}

Wang L. ^{[1
]}

Hu C. ^{[1
]}

机构：

[1] Beijing Key Laboratory of Precision/Ultra-precision Manufacturing Equipments and Control, State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing

来源：

Qinghua Daxue Xuebao/Journal of Tsinghua University | 2022年 / 62卷 / 03期

关键词：

Concurrent optimization; Heat sink; Multi-layer model; Size optimization; Thermofluid modeling; Topology optimization;

D O I：

10.16511/j.cnki.qhdxxb.2022.25.007

中图分类号：

学科分类号：

摘要：

The thermal-hydraulics of water-cooled heat sinks for planar motors were analyzed using a thermofluid model of a heat sink to concurrently optimize the heat sink size and topology. The three-layer thermofluid model of the heat sink included the coupled flow and heat transfer effects between the cover plates and the fluid-solid mixing channel including the influence of the flow channel thickness on the thermal-hydraulics. The model used a porosity model to describe the channel topology and a continuous-adjoint structural optimization model for the geometric variables related to the channel topology and thickness in a concurrent size-topology optimization scheme. Various numerical examples show the accuracy and efficiency of the three-layer thermofluid model and the size-topology optimization scheme. The three-layer model uses 10% less calculational time than full 3D models while still accurately predicting the temperature distribution. The optimized heat sinks have unique topologies with up to 30.82% better heat transfer than baseline designs. This concurrent approach is efficient and obtains designs that are competitive with discrete optimization approach results. © 2022, Tsinghua University Press. All right reserved.

引用

页码：400 / 407

页数：7

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