International Scientific Journal


A meta-material thermal concentrator model was simulated with different operating modes and different constructions based on sensu-shaped unit. The temperature and entropy generation rate was obtained by transient calculation. Thermal concentration ratio was defined with temperature and entropy production rate, which was used to analyze and evaluate performance. Thermal concentration ratio had the biggest value and thermal concentrator had the best effect at initial stage of the process. A larger temperature difference or smaller center distance leaded to better thermal control effect.
PAPER REVISED: 2016-02-22
PAPER ACCEPTED: 2016-03-09
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THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Supplement 3, PAGES [S651 - S658]
  1. Veselago, V. G., et al., The Left Hand of Brightness: Past, Present and Future of Negative Index Materials, Nature Materials, 5 (2006), 10, pp. 759-762
  2. Schurig, D., et al., Calculation of Material Properties and Ray Tracing in Transformation Media, Optics Express, 14 (2006), 21, pp. 9794-9804
  3. Leonhardt, U., et al., Broadband Invisibility by Non-Euclidean Cloaking, Science, 323 (2009), 5910, pp. 110-112
  4. Chen, H., et al., Electromagnetic Wave Interactions with a Meta-Material Cloak, Applied Physics Letters, 99 (2007), 6, 063903
  5. Yan, M., et al., Cylindrical Invisibility Cloak with Simplified Material Parameters is Inherently Visible, Physics Review Letters, 99 (2007), 23, 233901
  6. Chen, H., et al., Transformation Media for Linear Liquid Surface Waves, Europhysics Letter, 85 (2009), 2, 24004
  7. Shen, X. Y., et al., Research Progress in Thermal Meta-Materials, Physics, 42 (2013), 3, pp. 170-180
  8. Fan, C. Z., et al., Shaped Graded Materials with an Apparent Negative Thermal Conductivity, Applied Physics Letters, 92 (2008), 25, 251907
  9. Brun, M., et al., Achieving Control of In-Plane Elastic Waves, Applied Physics Letters, 94 (2009), 6, 061903
  10. Li, J. Y., et al., A Bifunctional Cloak Using Transformation Media, Journal of Applied Physics, 108 (2010), 7, 074504
  11. Guenneau, S., et al., Transformation Thermodynamics: Cloaking and Concentrating Heat Flux, Optics Express, 20 (2012), 7, pp. 8207-8218
  12. Schittny, R., et al., Experiments on Transformation Thermodynamics: Molding the Flow of Feat, Physics Review Letters, 110 (2013), 19, 195901
  13. Han, T., et al., Experimental Demonstration of a Bilayer Thermal Cloak, Physics Review Letters, 112 (2014), 5, 054302
  14. Lan, C., et al., Independent Manipulation of Electric and Thermal Fields with Bilayer Structure, arXiv preprint arXiv:1502.01325, Cornell University, Ithaca, N. Y., USA, 2015
  15. Han, T., et al., Manipulating Steady Heat Conduction by Sensu-Shaped Thermal Meta-materials, Science Reports, 5 (2015), May, 10242
  16. Nguyen, D. M., et al., Active Thermal Cloak, Applied Physics Letters, 107 (2015), 12, 121901
  17. Gyftopoulos, E. P., On the Evolution of the Definition of Entropy from Clausius to Today, Journal of Energy Resources Technology, 137 (2015), 2, 021010
  18. Bejan, A., Entropy Generation through Heat and Fluid Flow, John Wiley & Sons, New York, USA, 1982

© 2023 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence