Study on the laser ignition model and its analytic solution of solid energetic materials

The intensive transient non-Fourier heat conduction caused by high power laser ignition and the classical heat conduction were analyzed. It indicates that laser ignition has a different heat transfer mechanism from the common case. The analysis points out that a wave equation is corresponding to this kind of transient heat conduction, while a diffusive equation is corresponding to classical problem. The analytic solution is worked out at the given boundary and initial conditions. The calculation results are well matched with experiment results. This will provide a theoretic basis for the further study of the laser ignition.