Thermal rectification in bulk materials with asymmetric shape

D. Sawaki; Wataru Kobayashi; Y. Moritomo; I. Terasaki

doi:10.1063/1.3559615

Thermal rectification in bulk materials with asymmetric shape

D. Sawaki^*, Wataru Kobayashi, Y. Moritomo, I. Terasaki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

87 Citations (Scopus)

Abstract

We investigate thermal rectification in a bulk material with a pyramid shape to elucidate shape dependence of the thermal rectification, and find that rectifying coefficient R is 1.35 for this shape, which is smaller than R=1.43 for a rectangular shape. This result is fully duplicated by our numerical calculation based on Fourier's law. We also apply this calculation to a given shape, and show a possible way to increase R depending on the shape.

Original language	English
Article number	081915
Journal	Applied Physics Letters
Volume	98
Issue number	8
DOIs	https://doi.org/10.1063/1.3559615
Publication status	Published - 2011 Feb 21
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3559615

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abstract = "We investigate thermal rectification in a bulk material with a pyramid shape to elucidate shape dependence of the thermal rectification, and find that rectifying coefficient R is 1.35 for this shape, which is smaller than R=1.43 for a rectangular shape. This result is fully duplicated by our numerical calculation based on Fourier's law. We also apply this calculation to a given shape, and show a possible way to increase R depending on the shape.",

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AB - We investigate thermal rectification in a bulk material with a pyramid shape to elucidate shape dependence of the thermal rectification, and find that rectifying coefficient R is 1.35 for this shape, which is smaller than R=1.43 for a rectangular shape. This result is fully duplicated by our numerical calculation based on Fourier's law. We also apply this calculation to a given shape, and show a possible way to increase R depending on the shape.

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Thermal rectification in bulk materials with asymmetric shape

Abstract

ASJC Scopus subject areas

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