论文标题
双层的最佳设计是最高的热阻力：从水热极端环境中汲取的蜗牛壳的教训
Optimal design of a bilayer for the highest thermal resistance: A lesson learned from the shells of snails from hydrothermal extreme environment
论文作者
论文摘要
受到栖息在深海水热环境的蜗牛壳的独特设计的启发，我们从理论上研究了双层对外部热脉冲的温度响应。获得了双层温度场的半分析溶液，使我们能够评估内壁上发生的峰值温度，作为双层热电阻的定量指标。然后，通过检查构型层的堆叠序列和体积分数对内壁内壁峰温度的堆叠序列和体积分数的影响，研究了双层热电阻的结构确定因子。我们的结果表明，双层中两个层的堆叠序列以及它们的体积分数在确定热电阻方面起着重要作用。对于具有给定材料的两层，存在最佳的堆叠序列和厚度比，从而产生最佳的热电阻。我们的工作结果不仅说明了水热环境的蜗牛壳的独特层压设计，而且还为工程中多层热屏障的设计提供了实用的指南。
Inspired by the unique design of the shells of snails inhabiting the deep-sea hydrothermal environment, here we theoretically study the temperature response of a bilayer to an external thermal impulse. A semi-analytical solution to the temperature field in the bilayer is obtained, allowing us to assess the peak temperature that occurs on the inner wall as a quantitative indicator of the thermal resistance of the bilayer. The structural determining factors of the thermal resistance of a bilayer are then investigated by examining the effects of the stacking sequence and volume fractions of the constitutive layers on the peak temperature on the inner wall. Our results indicate that the stacking sequence of the two layers in a bilayer, as well as their volume fractions, play important roles in determining the thermal resistance. For two layers with given materials, there exists an optimal stacking sequence and thickness ratio giving rise to the best thermal resistance. The results of our work not only account for the unique laminated design of the snail shells from hydrothermal environments but also provide practical guidelines for the design of multilayer thermal barriers in engineering.
