利用非均匀散热器操纵热场
Manipulating thermal fields with inhomogeneous heat spreaders
摘要：
我们设计了一类空间不均匀的散热器的稳态热传导的背景下，导致空间均匀的热场在一个大的对流表面。每个散布器都有一个漏斗形的设计，或者是梯形棱柱或截头圆锥的形式，并在其底部由热源推动。我们采用基于变换的技术，通常用于研究超材料，以确定所需的导热系数的传播器。所获得的材料，虽然强烈的各向异性和不均匀，可以准确地近似组装各向同性，均匀层，使它们可实现。另一种方法，然后被认为是圆锥形和梯形的吊具分为两个或三个各向同性，均匀的组件分别。我们把这些简单的结构称为中性层。所有的设计都进行了验证，无论有没有界面之间的热接触电阻的影响。这种新颖的设计为未来能够操纵和控制热流的材料铺平了道路，有助于解决传统的传热问题，例如控制物体的温度和能量收集。
英文摘要：
We design a class of spatially inhomogeneous heat spreaders in the context of steady-state thermal conduction leading to spatially uniform thermal fields across a large convective surface. Each spreader has a funnel-shaped design, either in the form of a trapezoidal prism or truncated cone, and is forced by a thermal source at its base. We employ transformation-based techniques, commonly used to study metamaterials, to determine the require thermal conductivity for the spreaders. The obtained materials, although strongly anisotropic and inhomogeneous, can be accurately approximated by assembling isotropic, homogeneous layers, rendering them realisable. An alternative approach is then considered for the conical and trapezoidal spreaders by dividing them into two or three isotropic, homogeneous components respectively. We refer to these simple configurations as neutral layers. All designs are validated numerically both with and without the effects of thermal contact resistance between interfaces. Such novel designs pave the way for future materials that can manipulate and control the flow of heat, helping to solve traditional heat transfer problems such as controlling the temperature of an object and energy harvesting.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
