Finite volume simulation of a droplet flame ignition on unstructured meshes

摘要

This work deals with the numerical simulation on an unstructured mesh of the ignition and burning of an isolated fuel droplet modelled as a porous cylindrical wall. The reaction is assumed to be described by the equation A + B → P. The complexity of the physical model considered, including multi-scale feature and the presence of stiff propagating fronts, justifies manifold developments to overcome the difficulties connected with corresponding simulations. Within this report, two recently developed methods are employed and compared. Both methods rely on finite volume approaches, but show distinct differences in data-structures, choice of control volumes, meshing-strategy and even programming language.