Thermal Wave Scattering of Subsurface Defects in Solids Based on Non - fourier' s Models

In this paper, based on non - Fourier' s equation of heat conductivity, using image method and the expansion method of wave functions the thermal wave scattering of subsurface cylinder is investigated. A general solution of scattered waves based on wave equations of heat conduction is given. The effect of different physical parameters on the temperature distribution is analyzed. The thermal waves are excited at surfaces of opaque materials by modulated optical beams. The circular cylinder is taken as a cavity with thermal insulation conditions.