THE PROBLEM OF SPATIAL INSTABILITY OF THE PHYSICAL FIELDS IN THE ZONE OF LIQUID-PHASE REACTIONS AT BURNING OF THE ENERGETIC MATERIALS

摘要

Understanding and dynamic modeling of oscillatory response of the energetic materials (EM) combustion zone cannot be achieved until the combustion zone itself is properly characterized. Till today unified theory is not available mainly due to difficulty in probing thin reaction zones, whose dimensions changes with change in pressure condition in the solid propulsion system (SPS). The present work focuses on one of the critical events, namely on the spatial-periodic micro-structures (SPMS) excitation in the evaporated EM liquid-viscous layer (LVL). Suggested mechanism of the SPMS excitation in the evaporated EM LVL opens possibility for understanding a very complex phenomenon in the area of the EM on the new qualitative level. From principle-new positions are considered the fundamental physical phenomena, traditionally considered at the EM decomposition in the unstable burning wave. In particular, essentially new explanation of the well-known mechanism of bubbles motion in the thin LVL, connected with excitation of unstable electro-magnetic fields and electric charges transport is given. In accordance with existing representations, the "negative" erosion phenomenon is the exclusively gas-dynamic effect which has been not connected with processes in the LVL of burning EM. However, the concept that is considered in the paper, allows consider the given phenomenon from the new, more realistic positions. Additional task of the given research consists in obtaining of additional confirmations of reality of the concept of excitation of the existential micro-structures in the burning wave.