Title : ( Non-Fourier thermal focusing by gradient thermal metamaterials based on the Cattaneo–Vernotte model )
Authors: Zheng-Yang Li , Tian-Xue Ma , Dongjia Yan , Hao Wang , Mikhail V. Golub , Seyed Mahmoud Hosseini , Donghuan Liu , Peijun Wei , Chuanzeng Zhang ,Access to full-text not allowed by authors
Abstract
Direct methods to manipulate internal heat conduction in solids remain nearly elusive. In this work, we propose a two-dimensional (2D) gradient thermal metamaterial lens designed to control the internal non-Fourier heat conduction. This gradient thermal metamaterial comprises cylindrical structures made of dermis immersed in a stratum background with an effective refractive index adhering to the hyperbolic secant profile rule. Subsequently, the effective refractive index of the thermal metamaterial is defined and numerically assessed using the extended plane wave expansion method. Thereafter, the non-Fourier heat conduction is analyzed numerically via the finite element method in the time-domain. Our findings indicate that the proposed gradient thermal metamaterial can focus the heat effectively and is akin to a flat thermal lens. The proposed flat thermal lens offers promising avenues for enhancing the material properties by laser-based technologies.
Keywords
, Heat transfer; Thermodynamic states and processes; Metamaterials; Finite, element analysis; Thermal lensing.@article{paperid:1100806,
author = {ژنگ یانگ لی and تیان زو ما and دونگ جیا یان and هائو وانگ and میخائیل وی گلوب and Hosseini, Seyed Mahmoud and دانگوان لیو and پیجوآن وی and چوان زنگ ژنگ},
title = {Non-Fourier thermal focusing by gradient thermal metamaterials based on the Cattaneo–Vernotte model},
journal = {Journal of Applied Physics},
year = {2024},
volume = {136},
number = {19},
month = {November},
issn = {0021-8979},
keywords = {Heat transfer; Thermodynamic states and processes; Metamaterials; Finite-element analysis; Thermal lensing.},
}
%0 Journal Article
%T Non-Fourier thermal focusing by gradient thermal metamaterials based on the Cattaneo–Vernotte model
%A ژنگ یانگ لی
%A تیان زو ما
%A دونگ جیا یان
%A هائو وانگ
%A میخائیل وی گلوب
%A Hosseini, Seyed Mahmoud
%A دانگوان لیو
%A پیجوآن وی
%A چوان زنگ ژنگ
%J Journal of Applied Physics
%@ 0021-8979
%D 2024