Transformation thermodynamics

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DeltaV
Posts: 2245
Joined: Mon Oct 12, 2009 5:05 am

Transformation thermodynamics

Postby DeltaV » Mon Mar 26, 2012 7:58 pm

New 'thermal' approach to invisibility cloaking hides heat to enhance technology

Transformation thermodynamics: cloaking and concentrating heat flux

PDF
We adapt tools of transformation optics, governed by a (elliptic) wave equation, to thermodynamics, governed by the (parabolic) heat equation. We apply this new concept to an invibility cloak in order to thermally protect a region (a dead core) and to a concentrator to focus heat flux in a small region. We finally propose a multilayered cloak consisting of 20 homogeneous concentric layers with a piecewise constant isotropic diffusivity working over a finite time interval (homogenization approach).

Image

Kudos to the Optical Society of America for the open-access journal.



DeltaV
Posts: 2245
Joined: Mon Oct 12, 2009 5:05 am

Re: Transformation thermodynamics

Postby DeltaV » Fri Nov 21, 2014 4:37 pm

Multiphysics cloak: manipulating heat flux and electric current simultaneously --
http://arxiv.org/abs/1405.6949


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