Mathematical 3d-modeling for spinning gasless combustion waves

摘要

We consider a system of equations describing 3D propagation of spinning combustion waves along a thermally insulated cylindrical sample of solid fuel. A mechanism of spinning combustion is investigated numerically. Two kinds of modes were observed to take place: the modes with invariable front structure (at a small sample radius) and the non-stationary modes with multiple transformations of the front during a period. For the spinning combustion, the mean velocity of the front propagation was found to be approximately identical to the theoretical velocity of stationary combustion wave propagating through condensed phase under adiabatic conditions. The non-uniqueness of combustion modes was also found.