Experiments on transformation thermodynamics: Molding the flow of heat

Abstract

It has recently been shown theoretically that the time-dependent heat conduction equation is form-invariant under curvilinear coordinate transformations. Thus, in analogy to transformation optics, fictitious transformed space can be mapped onto (meta-)materials with spatially inhomogeneous and anisotropic heat-conductivity tensors in the laboratory space. On this basis, we design, fabricate, and characterize a micro-structured thermal cloak that molds the flow of heat around an object in a metal plate. This allows for transient protection of the object from heating, while maintaining the same downstream heat flow as without object and cloak.

10 pages, 4 figures

References in corpus (5)

• Broadband Acoustic Cloak for Ultrasound Waves
• Acoustic cloaking theory
• Cloaking of Matter Waves
• Achieving control of in-plane elastic waves
• Approximate quantum cloaking and almost trapped states

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