Measurements of Shock and Detonation Phenomena

Abstract

Measurements of shock and detonation phenomena are very difficult task because of destructive nature and extremely short duration of events. The experimental data are very important in verifying the theoretical description of phenomena. The advance in theoretical model and numerical simulation depends strongly on the progress in various experimental methods. During last decades, nanosecond time-resolved measurements of detonation pressure, particle velocity and temperature have become possible owing to the rapid progress of the experimental devices. In this chapter, the experimental diagnostics such as pressure and particle velocity gauges, laser velocity interferometer and optical pyrometer are presented. Actually, the experimental data of detonation temperature are very scarce. Detonation temperatures measured for various liquid and solid explosives are summarized and compared with theoretical values calculated using various types of equation of states. Underwater explosion test is a valuable tool to access the energy content and performance of explosives in longer time scale. Characteristics of the underwater explosion phenomena and measurements of underwater shock wave and bubble pulse are described.