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A simplified approach for heat conduction analysis of CNT-based nano-composites

机译：CNT基纳米复合材料导热分析的简化方法

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摘要

The unique thermal properties of carbon nanotubes (CNT) may offer possibilities for the development of fundamentally new composite materials. Numerical simulation for such CNT-based composites usually demands extremely large and expensive computer resources. In preliminary computations, temperature distribution in the CNT has been turned out to be almost uniform, due to its exceptionally high heat conductivity in comparison with the host polymer. This feature allows us to considerably simplify the mathematical model of the heat conduction in CNT composites. In the proposed approach, the host polymer is the only domain which is modeled, while the CNTs are treated as heat superconductors with constant and unknown temperatures constrained at their surfaces. As a result, the computational scale is reduced substantially. The hybrid boundary node method is applied in this study. Numerical examples clearly demonstrate the efficiency and sufficient accuracy of the proposed approach.
机译：碳纳米管（CNT）的独特热性能可能为开发新型复合材料提供可能性。这种基于CNT的复合材料的数值模拟通常需要非常大和昂贵的计算机资源。在初步计算中，由于与主体聚合物相比导热率极高，因此CNT中的温度分布已证明几乎是均匀的。此功能使我们可以大大简化CNT复合材料中导热的数学模型。在提出的方法中，仅对主体聚合物进行建模，而将CNT视为热超导体，其表面处的温度恒定且未知。结果，计算规模大大减小。本研究采用混合边界节点法。数值示例清楚地证明了所提出方法的效率和足够的准确性。

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