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Spectral effectiveness of engineered thermal cloaks in the frequency regime
We analyse basic thermal cloaks designed via different geometric transforms applied to thermal cloaking. We evaluate quantitatively the effectiveness of these heterogeneous anisotropic thermal cloaks through the calculation of the standard deviation of the isotherms. The study addresses the frequenc...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5376672/ https://www.ncbi.nlm.nih.gov/pubmed/25486981 http://dx.doi.org/10.1038/srep07386 |
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author | Petiteau, David Guenneau, Sebastien Bellieud, Michel Zerrad, Myriam Amra, Claude |
author_facet | Petiteau, David Guenneau, Sebastien Bellieud, Michel Zerrad, Myriam Amra, Claude |
author_sort | Petiteau, David |
collection | PubMed |
description | We analyse basic thermal cloaks designed via different geometric transforms applied to thermal cloaking. We evaluate quantitatively the effectiveness of these heterogeneous anisotropic thermal cloaks through the calculation of the standard deviation of the isotherms. The study addresses the frequency regime and we point out the cloak's spectral effectiveness. We find that all these cloaks have comparable effectiveness irrespective of whether or not they have singular conductivity at their inner boundary. However, approximate cloaking with multi-layered cloak critically depends upon the homogenization algorithm and it is shown that the standard deviation varies linearly with the inverse of the number of layers. |
format | Online Article Text |
id | pubmed-5376672 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53766722017-04-05 Spectral effectiveness of engineered thermal cloaks in the frequency regime Petiteau, David Guenneau, Sebastien Bellieud, Michel Zerrad, Myriam Amra, Claude Sci Rep Article We analyse basic thermal cloaks designed via different geometric transforms applied to thermal cloaking. We evaluate quantitatively the effectiveness of these heterogeneous anisotropic thermal cloaks through the calculation of the standard deviation of the isotherms. The study addresses the frequency regime and we point out the cloak's spectral effectiveness. We find that all these cloaks have comparable effectiveness irrespective of whether or not they have singular conductivity at their inner boundary. However, approximate cloaking with multi-layered cloak critically depends upon the homogenization algorithm and it is shown that the standard deviation varies linearly with the inverse of the number of layers. Nature Publishing Group 2014-12-09 /pmc/articles/PMC5376672/ /pubmed/25486981 http://dx.doi.org/10.1038/srep07386 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ |
spellingShingle | Article Petiteau, David Guenneau, Sebastien Bellieud, Michel Zerrad, Myriam Amra, Claude Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title | Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title_full | Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title_fullStr | Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title_full_unstemmed | Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title_short | Spectral effectiveness of engineered thermal cloaks in the frequency regime |
title_sort | spectral effectiveness of engineered thermal cloaks in the frequency regime |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5376672/ https://www.ncbi.nlm.nih.gov/pubmed/25486981 http://dx.doi.org/10.1038/srep07386 |
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