Self–similar propagation regimes of a nonstationary high–temperature convective jet in the adiabatic atmosphere

An integrated model of a nonstationary high–temperature convective jet that includes the universal dependence of the upper boundary of the convective front on the power of a point heat source is proposed. A class of self–similar solutions corresponding to heat sources whose power changes in time according to the power and exponential laws is considered. Calculation results are compared with known experimental vertical–velocity and temperature profiles on the jet axis.