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Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media

Owing to the utilization of transformation optics, many significant research and development achievements have expanded the applications of illusion devices into thermal fields. However, most of the current studies on relevant thermal illusions used to reshape the thermal fields are dependent of cer...

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Detalles Bibliográficos
Autores principales: Xu, Guoqiang, Zhang, Haochun, Jin, Liang, Jin, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951513/
https://www.ncbi.nlm.nih.gov/pubmed/29671833
http://dx.doi.org/10.3390/ma11040629
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author Xu, Guoqiang
Zhang, Haochun
Jin, Liang
Jin, Yan
author_facet Xu, Guoqiang
Zhang, Haochun
Jin, Liang
Jin, Yan
author_sort Xu, Guoqiang
collection PubMed
description Owing to the utilization of transformation optics, many significant research and development achievements have expanded the applications of illusion devices into thermal fields. However, most of the current studies on relevant thermal illusions used to reshape the thermal fields are dependent of certain pre-designed geometric profiles with complicated conductivity configurations. In this paper, we propose a methodology for designing a new class of thermal source illusion devices for achieving directed thermal diffusions with natural homogeneous media. The employments of the space rotations in the linear transformation processes allow the directed thermal diffusions to be independent of the geometric profiles, and the utilization of natural homogeneous media improve the feasibility. Four schemes, with fewer types of homogeneous media filling the functional regions, are demonstrated in transient states. The expected performances are observed in each scheme. The related performance are analyzed by comparing the thermal distribution characteristics and the illusion effectiveness on the measured lines. The findings obtained in this paper see applications in the development of directed diffusions with minimal thermal loss, used in novel “multi-beam” thermal generation, thermal lenses, solar receivers, and waveguide.
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spelling pubmed-59515132018-05-15 Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media Xu, Guoqiang Zhang, Haochun Jin, Liang Jin, Yan Materials (Basel) Article Owing to the utilization of transformation optics, many significant research and development achievements have expanded the applications of illusion devices into thermal fields. However, most of the current studies on relevant thermal illusions used to reshape the thermal fields are dependent of certain pre-designed geometric profiles with complicated conductivity configurations. In this paper, we propose a methodology for designing a new class of thermal source illusion devices for achieving directed thermal diffusions with natural homogeneous media. The employments of the space rotations in the linear transformation processes allow the directed thermal diffusions to be independent of the geometric profiles, and the utilization of natural homogeneous media improve the feasibility. Four schemes, with fewer types of homogeneous media filling the functional regions, are demonstrated in transient states. The expected performances are observed in each scheme. The related performance are analyzed by comparing the thermal distribution characteristics and the illusion effectiveness on the measured lines. The findings obtained in this paper see applications in the development of directed diffusions with minimal thermal loss, used in novel “multi-beam” thermal generation, thermal lenses, solar receivers, and waveguide. MDPI 2018-04-19 /pmc/articles/PMC5951513/ /pubmed/29671833 http://dx.doi.org/10.3390/ma11040629 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xu, Guoqiang
Zhang, Haochun
Jin, Liang
Jin, Yan
Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title_full Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title_fullStr Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title_full_unstemmed Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title_short Directed Thermal Diffusions through Metamaterial Source Illusion with Homogeneous Natural Media
title_sort directed thermal diffusions through metamaterial source illusion with homogeneous natural media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951513/
https://www.ncbi.nlm.nih.gov/pubmed/29671833
http://dx.doi.org/10.3390/ma11040629
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