An efficient two-step Monte Carlo method for heat conduction in nanostructures
作者: Yu-Chao HuaBing-Yang Cao
作者单位: 1Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
刊名: Journal of Computational Physics, 2017, Vol.342 , pp.253-266
来源数据库: Elsevier Journal
DOI: 10.1016/j.jcp.2017.04.042
关键词: Phonon Monte CarloHeat conductionNanostructureEffective thermal conductivity
原始语种摘要: Abstract(#br)Research on the heat conduction in nanostructures has drawn much attention due to their potential applications in thermoelectric devices. Although the phonon tracing Monte Carlo (MC) technique, where the trajectories of individual phonons are simulated independently, has been extensively used for simulating the heat conduction in nanomaterials, it cannot efficiently simulate the phonon transport in the large area periodic nanostructures yet, due to the demand of absorbing boundaries. In the present work, we develop a two-step phonon tracing MC method to solve this problem. At the first step, the initial phonon transmittance and the phonon emission distributions at the internal virtual boundary are obtained by simulating phonon transport in the initial simulation unit that is...
全文获取路径: Elsevier  (合作)
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来源刊物:
影响因子:2.138 (2012)

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关键词翻译
关键词翻译
  • conduction 导电
  • phonon 声子
  • calculated 计算的
  • thermal 热的
  • transmittance 透射比
  • method 方法
  • conductivity 传导率
  • simulation 模拟
  • tracing 透写
  • simulate 模拟