Determining the unsteady combustion behavior of propellants from results of closed-bomb testing

Two methods for processing the results of closed-bomb tests of propellants are proposed: a method for determining the force of propellant, the covolume of propellant gas, and the pressure dependence of the degree of propellant combustion that takes into account the heat exchange between the combustion products and the walls of the closed bomb; a procedure for determining the linear behavior of unsteady combustion in the form justified by Ya. B. Zel’dovich. It is shown that accounting for heat losses is necessary not only to determine the force of propellant and the covolume of propellant gas but also to determine the combustion behavior.