FILTRATION COMBUSTION IN THE CLOSED VOLUME OF AN SHS REACTOR

We propose a two-dimensional mathematical model of filtration combusti on of a charge layer in an SHS reactor, in which the variation in the temperature and pressure of the gas in the reactor during the synthesi s is taken into account. For a kinetic combustion regime, me have cons tructed an approximate analytical solution, which is in satisfactory a greement with the results of a numerical calculation. Heating of the g as in the reactor volume is shown to lead to acceleration of reaction- front propagation, whereas the moment of attainment of maximum pressur e in the reactor, which allows one to judge, in practice, the cessatio n of the synthesis, does not always coincide with cessation of combust ion.