Metamaterials are the artificial materials fabricated in special structures that exhibit the exotic properties different from the naturally occurring materials. For example, the well-known metamaterial is negative-refractive material used to control the propagation of electromagnetic, optical and acoustic waves … Thermal metamaterial is a new kind of metamaterials that has been interested in the scientific community in recent years because of its ability to control and guide heat flux inside the material in the manner which is not found in the conventional physical phenomena. In this paper, the simulation of heat conduction process occurring in the surface structure of two-dimensional (2D) thermal metamaterials and the applications of this structure to produce "thermal cloak”, "thermal concentrator", "thermal diffuser" and "thermal rotator" are reported. In addition, the influence of geometrical structural parameters on the thermal process control is also presented.

Keywords: Thermal metamaterials, thermal cloak, thermal concentrator, thermal diffuser, thermal rotator.