Method and device for simulating a response of a load of solid energetic material

摘要

Method and device for simulating a response of a loading of solid energetic material Method of simulating a response of a loading of solid energetic material initiated in combustion comprising: - a step for obtaining (E10) a model spatially discretized digital (MOD) of the loading and comprising a plurality of finite elements; - a step of determining (E20) a location of the reactive front from values of a physical variable at a plurality of later times for the plurality of finite elements of the digital model, the physical variable being representative of an amount of solid energetic material at a given instant and in a given volume of the loading, said determining step comprising, to obtain said values, the resolution (E24, E26) at each subsequent instant and for each finite element, of a transport equation governing said physical variable, the resolved transport equation comprising, for each finite element whose a value of the physical variable at an instant preceding said posterior instant is greater than a determined threshold and having at least one neighboring finite element having a value of said physical variable at said preceding instant less than or equal to the determined threshold. Figure for the abstract: Fig. 3.