Thermal rectification induced by geometrical asymmetry: A two-dimensional multiparticle Lorentz gas model

Huan Wang, Yu Yang, Hongyuan Chen, Nianbei Li, and Lifa Zhang
Phys. Rev. E 99, 062111 – Published 12 June 2019

Abstract

We propose a two-dimensional (2D) multiparticle Lorentz gas model by combining the direct simulation Monte Carlo method with the Lorentz gas model, where the normal thermal transport under Fourier's law is confirmed by length-independent thermal conductivity. For this 2D multiparticle Lorentz gas model, the thermal rectification effect is obtained with the asymmetrical setup of a trapezoidal shape, which is a purely geometric effect. Furthermore, we find a scaling behavior between the rectification ratio and the geometrical parameters of the trapezoidal shape, which is verified by numerical simulations.

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  • Received 26 March 2019

DOI:https://doi.org/10.1103/PhysRevE.99.062111

©2019 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Authors & Affiliations

Huan Wang1, Yu Yang1, Hongyuan Chen1, Nianbei Li2,*, and Lifa Zhang1,†

  • 1NNU-SULI Thermal Energy Research Center (NSTER) and Center for Quantum Transport and Thermal Energy Science (CQTES), School of Physics and Technology, Nanjing Normal University, Nanjing, 210023, China
  • 2Institute of Systems Science and Department of Physics, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China

  • *nbli@hqu.edu.cn
  • phyzlf@njnu.edu.cn

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Vol. 99, Iss. 6 — June 2019

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