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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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. |
format | Online Article Text |
id | pubmed-5951513 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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