论文标题
使用高效石墨烯和纳米管模型对近场传热分析的几何影响
Geometric effect on near-field heat transfer analysis using efficient graphene and nanotube models
论文作者
论文摘要
在最近对几何学对近场传热(NFHT)增强作用的研究热情之后,我们提出了基于简化但高效的石墨烯和纳米管模型的分析。考虑了两个几何形状:两个平行的无限“石墨烯”表面和一维无限“纳米管”线的几何表面与无限表面并行。由于其对称性,前者的分析更简单,即使如此,早期的工作也表明,在此问题中应用完整模型仍然需要大量计算。除其他发现外,我们简化的计算 - 成功地复制了相关早期作品的结果 - 表明与线表面系统的距离相比,$ j \ sim d^{ - 5.1} $与$ j \ sim d^{ - 5.1} $相比,平行表面的$ j \ sim d^{ - 5.1} $。这种比较以及我们有效方法的应用将是尝试找到描述NFHT几何依赖性的一般规则的重要第一步。
Following the recent research enthusiasm on the effect of geometry on near-field heat transfer (NFHT) enhancement, we present an analysis based on simplified yet highly efficient graphene and nanotube models. Two geometries are considered: that of two parallel infinite "graphene" surfaces and that of a one-dimensional infinite "nanotube" line in parallel with an infinite surface. Due to its symmetry, the former is in principal simpler to analyze and even so, earlier works suggested that the application of a full model in this problem still demands heavy computations. Among other findings, our simplified computation - having successfully replicated the results of relevant earlier works - suggests a sharper NFHT enhancement dependence on distance for the line-surface system, namely $J\sim d^{-5.1}$ as compared to $J\sim d^{-2.2}$ for the parallel surface. Such comparisons together with applications of our efficient approach would be the important first steps in the attempt to find a general rule describing geometric dependence of NFHT.