6533b820fe1ef96bd127a3b9

RESEARCH PRODUCT

Thermal cloaking of complex objects with the neutral inclusion and the coordinate transformation methods

Xiangqiao YanQingxiang JiQingxiang JiGuodong FangChen XueyanChen XueyanMuamer KadicJun LiangJun LiangVincent Laude

subject

010302 applied physicsPhysics[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]Coordinate systemCloakGeneral Physics and AstronomyCloaking02 engineering and technology021001 nanoscience & nanotechnology01 natural scienceslcsh:QC1-999[SPI.MAT]Engineering Sciences [physics]/MaterialsThermal conductivityClassical mechanicsTransformation (function)0103 physical sciencesThermalTransient (oscillation)Inclusion (mineral)[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics0210 nano-technologylcsh:Physics

description

We explore the cloaking of a complex shape by either the neutral inclusion or the transformation thermodynamics (TT) methods. Thin cloaks are built and the heat cloaking efficiency is investigated for both the steady-state and the transient regimes. We show that the neutral inclusion cloak is more efficient in both regimes, though it has the drawback that the thermal conductivity of the cloaked shape must be known. In practice, the neutral inclusion method is more flexible and easier to implement than the coordinate transformation method, especially for complex shapes.We explore the cloaking of a complex shape by either the neutral inclusion or the transformation thermodynamics (TT) methods. Thin cloaks are built and the heat cloaking efficiency is investigated for both the steady-state and the transient regimes. We show that the neutral inclusion cloak is more efficient in both regimes, though it has the drawback that the thermal conductivity of the cloaked shape must be known. In practice, the neutral inclusion method is more flexible and easier to implement than the coordinate transformation method, especially for complex shapes.

https://hal.archives-ouvertes.fr/hal-02182913/file/454a2296-78ae-4a65-a569-754a031f0e3d-author.pdf