Thermal invisibility through geometrical transformation: a segmented cloaking approach

E. H. Ooi, V. Popov

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Abstract

Thermal invisibility through geometrical transformation can be achieved; however, the required materials would be inhomogeneous and thermally anisotropic. The difficulty in manufacturing materials that are inhomogeneous and thermally anisotropic in the desired way, has been a major obstacle in the fabrication of a thermal cloaking device. In this study, the potential of using segmented cloaking to mimic the inhomogeneous and thermally anisotropic properties to achieve thermal invisibility is explored. Segmented cloaking involves the use of a multi-layered structure - each layer defined by homogeneous and thermally isotropic materials - to replace the inhomogeneous and anisotropic material. This reduces the requirements on the materials used in the fabrication of a thermal cloaking device. The effectiveness of the segmented thermal cloak is examined numerically and the effects of the number of segments used and the thickness ratio of the segments on the level of thermal invisibility achieved are investigated.

Original languageEnglish
Title of host publicationAdvanced Computational Methods and Experiments in Heat Transfer XII
Pages39-46
Number of pages8
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventInternational Conference on Simulation and Experiments in Heat Transfer and Their Applications 2012 - Split, Croatia
Duration: 27 Jul 201229 Jul 2012
Conference number: 12th
https://www.witpress.com/elibrary/wit-transactions-on-engineering-sciences/75 (Proceedings)

Publication series

NameWIT Transactions on Engineering Sciences
Volume75
ISSN (Print)1743-3533

Conference

ConferenceInternational Conference on Simulation and Experiments in Heat Transfer and Their Applications 2012
Abbreviated titleHT 2012
CountryCroatia
CitySplit
Period27/07/1229/07/12
Internet address

Keywords

  • Coordinate transformation
  • Homogeneous and isotropic
  • Segmented thermal cloaking
  • Thermal conductivity
  • Thermal resistance

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