在复杂网络中对热传输的声子定位的调节
Kezhao Xiong1,2, Yuqi Liu1, Man Zhou1
1College of Sciences, Xi'an University of Science and Technology, Xi'an, 710054, People's Republic of China.
Physical review. E
|May 17, 2024
概括
这项研究揭示了网络结构如何影响热传输. 操纵度分布通过减少声局部化来改善热流,而增加集群阻碍了它.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 网络科学 网络科学
背景情况:
- 在复杂的网络中,热传输调节的理解较差.
- 这些系统中控制热流的基本物理机制仍然难以捉摸.
- 现有的模型缺乏对热性质结构影响的全面理解.
研究的目的:
- 研究复杂网络中热传输调节的物理机制.
- 为分析热传输提出一种新的复杂网络模型.
- 阐明度分布和聚类系数在热传输中的作用.
主要方法:
- 开发了一个复杂的网络模型,重点关注度分布和聚类系数.
- 分析了变化度分布调节参数 (σ) 的影响.
- 评估了改变聚类系数 (c) 对热性能的影响.
- 计算了伪分散关系,状态密度和参与率.
主要成果:
- 增加度分布调节 (σ) 降低了声子局部化,提高了热传输效率.
- 增加的聚合系数 (c) 会导致更大的声子局部化和降低热传输效率.
- 最大自身频率随着σ的增加而下降,第二最小自身频率随着c的增加而下降.
结论:
- 声定位是复杂网络的热传输的一个关键因素.
- 网络拓,特别是度分布和集群,在很大程度上决定了热传输.
- 拟议的模型提供了通过网络设计控制热导率的见解.
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