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Reduced acoustic cloaks based on temperature gradients
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10.1063/1.4747197
/content/aip/journal/apl/101/8/10.1063/1.4747197
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4747197
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature profile of the reduced acoustic cloak (continuous line) compared with the profile obtained by heating or cooling the cylinders belonging to the concentric layers forming the cloak (dots). The inset shows the two dimensional temperature distribution.

Image of FIG. 2.
FIG. 2.

Frequency dependence of the backscattered field produced by a rigid cylinder with radius (dashed line) and its comparison with the fields produced by the cylinder surrounded with a perfect cloak made of a layered shell with 20 layers [6] (dotted line) and by the 20 layers thick reduced cloak proposed here (continuous line).

Image of FIG. 3.
FIG. 3.

Snapshots of the total pressure pattern (real part) produced by the scattering of a plane sound wave, with wavelength , impinging a reduced cloak made of layered metafluids (left panels) and the corresponding cloak made a cluster of heated cylinders (right panels). Simulations are shown for three consecutive times: t = 0 (upper panel), (middle panel), and (lower panel).

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/content/aip/journal/apl/101/8/10.1063/1.4747197
2012-08-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reduced acoustic cloaks based on temperature gradients
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4747197
10.1063/1.4747197
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