State equations are for gases what behavior laws are for solid materials, i.e. the fundamental and essential building blocks of a numerical simulation faithful to what would happen in reality. Pyrotechnical experiments on a firing range have allowed us to define simulation parameters and sizing rules when explosives are simulated.
The treatment of the Fluid-Structure interactions is a crucial point of the confidence that can be brought in the result of the calculation. This is the main focus of all our thoughts when we simulate blast effects. Our experience allows us to select the right solvers to use in order to best meet the client’s needs.
They are also protocols of recalibration experiment-calculation which lead us to put more physics in our numerical simulations, and to no longer have to “tune” certain calculation codes which, by essence, only partially reproduce these phenomena of explosion and detonation.