ECM - École Centrale de Marseille (Pôle de l'étoile - Technopole de Château-Gombert - 38 rue Frédéric Joliot-Curie - 13013 Marseille - France)
AMU - Aix Marseille Université : UMR7249/ UMR 6133 (Aix-Marseille Université
Jardins du Pharo
58 Boulevard Charles Livon
13284 Marseille cedex 7 - France)
Abstract : It was recently 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 microstructured 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.
Robert Schittny, Muamer Kadic, Sébastien Guenneau, Martin Wegener. Experiments on Transformation Thermodynamics: Molding the Flow of Heat. Physical Review Letters, American Physical Society, 2013, 110 (195901). ⟨hal-01281346⟩