화학공학소재연구정보센터
Propellants Explosives Pyrotechnics, Vol.26, No.6, 302-310, 2001
Physical model of explosion phenomena-physical substantiation of Kamlet's complaint
It was Dr. Kamlet, 1986, who expressed vividly the deficiencies of detonation physics, Since detonation physics is based on first principles his statements at that time were a matter of utmost courage! In his memory it seems appropriate to try a proof of falsification of this classical theory in the sense of Karl Popper, and to suggest a new approach. Detonics is the science of pressure fronts, and pressure sources. Generally. phenomena near a pressure source cannot be described in plane wave terms as the classical theory does. With increasing distance from the pressure origin plane wave descriptions improve. These become physically fully correct at distances from the pressure front where detonics is no longer of interest. Without a knowledge of the differences between spherical and plane wave descriptions one cannot estimate the associated errors, nor is there any real understanding of important phenomena. Therefore, in tiny plane wave description of detonics there appear 'pathological' phenomena, and it is necessary to invoke several assumptions in order to arrive at a description that is in accord with real experience. The intent of this contribution is, to point out the basic errors of plane wave detonics, and the automatic implications of the said pathological events by using a physically appropriate approach in terms of a spherical wave description. A consequence of this approach is the conclusion that explosive phenomena are not restricted to energetic materials, but can occur in any dynamically excited two-phase system, even without any chemical reaction, The considerations are valid for condensed systems. while for gases other thermoacoustic and resonance phenomena come into play.