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Nonlinear Constitutive Models for Nano-Scale Heat Conduction
Multiscale Modeling and Simulation ( IF 1.9 ) Pub Date : 2021-03-24 , DOI: 10.1137/19m1257664
Weiqi Chu , Xiantao Li

Multiscale Modeling &Simulation, Volume 19, Issue 1, Page 533-549, January 2021.
We present a first-principle based approach that leads from a many-particle description to a nonlinear, stochastic constitutive relation for the modeling of transient heat conduction processes at the nano-mechanical scale. By enforcing statistical consistency, in that the statistics of local energy is consistent with that from an all-atom description, we identify the driving force as well as the model parameters in these generalized constitutive models. The connections to established generalized constitutive relations, including Cattaneo--Vernotte-type models, will be demonstrated.


中文翻译:

纳米级热传导的非线性本构模型

多尺度建模与仿真,第 19 卷,第 1 期,第 533-549 页,2021 年 1 月
。纳米机械尺度。通过加强统计一致性,因为局部能量的统计与全原子描述的一致,我们确定了这些广义本构模型中的驱动力和模型参数。将展示与已建立的广义本构关系的联系,包括 Cattaneo--Vernotte 型模型。
更新日期:2021-03-24
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