Excitation of the Anomalous-Fluctuating Physical Fields and Existential Micro-Structures in the Burning Wave of the Energetic Materials
The problem of excitation of the anomalous- fluctuating physical fields and existential periodic micro-structures at ignition and burning of the energetic materials is one of the major problems arising at designing of the solid propulsion systems for various aerospace applications. Understanding and dynamic modeling of oscillatory response of the energetic materials 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. During the last few years, all new and new researchers informed that on the burning surface of the energetic materials are observed the periodic micro-structures like a micro-torches. Both the experiment, and the theory confirms, that the spatial-periodic micro-structures excitation is rather universal phenomenon. The present work focuses on one of the critical events, namely on the spatial- periodic micro-structures excitation in the evaporated energetic materials liquid-viscous layer. Suggested mechanism of the spatial-periodic micro- structures excitation in the evaporated energetic materials liquid-viscous layer opens possibility for understanding a very complex phenomenon in the area of the energetic materials on the new qualitative level. From principle-new positions are considered the fundamental physical phenomena, traditionally considered at the energetic materials decomposition in the unstable burning wave. In particular, essentially new explanation of the well-known mechanism of bubbles motion in the thin liquid- viscous layer, 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 liquid-viscous layer of burning energetic material. 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.
solid propulsion systems combustion instability liquid-viscous layer thermo-electric convection magneto-dipole micro-structures micro-torch periodic structures negative erosion ammonium perchlorate reaction centers
Alexander LUKIN
Department of Mechanics & Physics-Chemistry of Heterogeneous Mediums, Institute of Applied Mechanics, Ural Branch of the Russian Academy of Sciences, Izhevsk, 426067, Udmurtia Republic, Russian Federation
国际会议
西安
英文
333-343
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）