| 摘要: |
| 三周期极小曲面（TPMS）点阵具有轻质、换热效率高及比强度高的特点，在对流式主动冷却结构中有着广泛的应用前景。由于TPMS点阵构型多种多样，其对应的热学性能以及流体流动特性也有所差异。为充分发挥不同结构的性能优势，本文通过流固耦合传热数值分析，对不同结构参数进行分析，结果可知TPMS点阵结构能够有效提升结构隔热性能，异构点阵的隔热性能主要取决于基础胞元类型以及其占比，合适的异构构型能够有效提升结构的温度均匀性，梯度优化能够有效提高结构隔热性能，却也表现出一定局限性。 |
| 关键词: 异构点阵 主动冷却结构 数值模拟 热学性能 三周期极小曲面 |
| 基金项目:国防基础科研项目（JCKY202*****033）。 |
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| Performance Analysis of Convection Active Cooling Structure Based on Heterogeneous Fusion Lattice |
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Sun Chao1, Shen Xinze1, Song Kanghui1, Li Xudong1, Wang Xiaoming2, Zhang Changdong*1
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1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094;2. Beijing lnstitude of Remote Sensing Equipment, Beijing 100854
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| Abstract: |
| The triply periodic minimal surface (TPMS) lattice possesses the features of low weight, high heat exchange efficiency and high specific strength, and thus has extensive application prospects in convective active cooling structures. Due to the variety of TPMS lattice shapes, the corresponding thermal properties and fluid flow characteristics vary. In order to fully exploit the performance advantages of different structures, this paper analyses the different structural parameters through numerical fluid-solid coupled heat transfer analysis. This article analyzes different structural parameters through numerical analysis of fluid structure coupling heat transfer. The results show that TPMS lattice structure can effectively improve the thermal insulation performance of the structure. The thermal insulation performance of heterogeneous lattice mainly depends on the type and proportion of basic cells. The appropriate heterogeneous configuration can effectively improve the temperature uniformity of the structure. Gradient optimization can effectively improve the thermal insulation performance of the structure, but it also shows certain limitations. |
| Key words: heterogeneous lattice active cooling structure numerical simulation thermal properties triply periodic minimal surface |
