Modelling of Inclined Wave of Filtration Solid Fuel Combustion Using CFD-DEM Technique

We investigate flame front for the inverse wave (with trailing combustion front) of filtration combustion of solid fuel. This problem naturally demands coupled Euler-Lagrange approach, as it contains phenomena that are inherent for gaseous or disperse phase.It is found that propagation of plane combustion front becomes unstable under certain conditions; as a result, the front spontaneously inclines. The thermo-hydrodynamic mechanism (originating from temperature dependence of gas permeability) is responsible for inclination developing.