Numerical simulations of an explosive flux compression generator

Summary form only given, as follows. Explosive generators can be used to produce current and voltage waveforms that can be used for a variety of applications including acceleration of plasma and solid projectiles. The theoretical and experimental study and design of these devices has been done extensively by the Russians for decades. However, magnetohydrodynamic (MHD) simulations of these devices has not been as nearly as extensive. In this study, the Phillips Laboratory's 2 1/2 dimensional MHD code MACH 2 was used to simulate and analyze a simple flux compression generator. The code uses an interface tracking capability to accurately simulate the movements of the detonating high explosive, armature and stator. An integrated circuit solver predicts the voltage and current generated as a function of time during the explosion. Ultimately these simulations will enable the design of optimal geometries and configurations without the expense of numerous explosive tests.