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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Vascularization with grids of channels: multiple scales, loops and body shapes
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Vascularization with grids of channels: multiple scales, loops and body shapes

机译:具有通道网格的血管化:多种尺度,环和身体形状

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Grid-shaped and tree-shaped flow architectures are being generated for use in vascularized materials with multiple functionality (self-healing, self-cooling, etc), based on the principle of the constructal law of evolutionary increase of flow access through the generation of better flowing configurations (designs). Here we investigate systematically the advantages of endowing the complex flow architecture with more freedom to morph. Four ways to increase design freedom are explored: multi-scale grids (one, two, three and four diameter sizes), multi-shape loops (square, triangular, hexagonal, rhombic), multi-shape bodies (hexagonal, square, rhombic) and vascularization with grids versus trees. We show that significant gains in global flow access are achieved as the number of optimized channel diameters increases. The most promising combinations of body and loop shapes are hexagonal bodies with triangular loops and square bodies with square loops. The tree-shaped architecture outperforms the grid, but it is recommendable only for stressed bodies in which the most likely location of the cracks is known ahead of time. The effect of body size on the global performance of vascularized multi-scale and multi-shape materials is documented. Diminishing returns and increasing robustness set in as the complexity of the optimized flow architectures increases.
机译:基于通过生成水流的流量逐渐增加的构造定律的原理,正在生成用于具有多种功能(自愈,自冷等)的血管化材料的网格状和树状流结构。更好的流动配置(设计)。在这里,我们系统地研究了赋予复杂流结构更多的变形自由的优势。探索增加设计自由度的四种方法:多尺度网格(一个,两个,三个和四个直径大小),多形状环(正方形,三角形,六边形,菱形),多形状主体(六边形,正方形,菱形)以及网格与树木的血管形成。我们表明,随着优化通道直径的增加,可以在全局流动通道中获得显着的收益。体和环形状的最有希望的组合是带有三角形环的六角形体和带有正方形环的方形体。树形结构的性能优于网格,但仅建议在应力主体中提前知道裂缝最可能的位置。记录了体型对血管化多尺度和多形状材料的整体性能的影响。随着优化流程结构的复杂性增加,收益递减,而鲁棒性也随之提高。

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