| Popis: |
In this paper, the dynamics of the root of a plasma torch during the destructive treatment of the surface of a substance by an intense pulse of radiation were considered. It was assumed that the aerosol formed near the surface has a complex drops-cluster structure. For this case, approximate piecewise continuous solutions were obtained during the time of the pulse and after its termination. The obtained solutions include two parameters, which are the characteristics of the interaction of radiation with ablative substance. Based on these solutions, averaged expressions for pressure and crater function were obtained. Analysis of their behavior was carried out for various values of the parameters Λ and \(e_{q}\). Both parameters affect the value of the maximum pressure near the surface at the time of active laser exposure. Also, parameter Λ depends on the frequency of the radiation and the frequency characteristics of the irradiated physical system. In the paper, the influence of the frequency parameter h(ω) to the absorption coefficient is studied. The influence of this parameter to the maximum pressure in the process under consideration is analyzed. |
