Eulerian approach for unsteady two-phase reactive solid rocket motor flows loaded with aluminum particles

On high-resolution schemes for solving unsteady compressible two-phase dilute viscous flows

“…The progress of computers not only allows applications that are more complicated to be simulated, from a geometrical point of view, but also the refinement of the physical models. For example, it is now possible to numerically solve the two-phase reactive flow in rocket engines by using sophisticated combustion models of aluminium particles [1,6,7]. In previous approaches, the dissipative effects in the gas phase (viscous flows) are generally included in the models.…”

Improvements of the base bleed effect using reactive particles

“…The effects of the combustion of metallic particles are here investigated. It was successfully proven that the specific combustion of aluminum particles can be included in general codes devoted to Solid Rocket Motors flows [24].…”

“…The mass transfer within the dispersed phase is modeled through the termω p,i whileΓ p−g,i represent the mass transfer between the gas and the particles due to the aluminum combustion. The model we use for the aluminum combustion is a development of the Law's model (1973) that was presented in [24,25].…”

“…More details about this complete model can be found in [24,25]. The particles phase (dispersed phase) as well as the gaseous phase are described by a set of partial differential equations representing the mass, momentum and energy conservation laws.…”

“…In the research code [24,26,27] used in this study, the set of governing equations of the two-phase flow is solved by using a high order finite volume method. The different fluxes for the gaseous and dispersed phase are obtained with the solution of exact Riemann solvers [26,28].…”