Magneto-Hydrodynamic Calculation of Magnetic Flux Compression Using Imploding Cylindrical Liners

Abstract

Based on the one-dimensional elastic-plastic reactive hydrodynamic code SSS, the onedimensional magneto-hydrodynamics code SSS/MHD is developed successfully, and calculation is carried for cylindrical magneto cumulative generators (MC-1 device). The magnetic field diffusion into liner and sample tuber is analyzed, and the result shows that the maximum value of magnetic induction to cavity 0.2 mm in liner is only sixteen Tesla, while the one in sample tuber is several hundred Tesla, which is caused by balancing of electromagnetism force and imploding one for the different velocity of liner and sample tuber. The curves of magnetic induction on axes of cavity and the velocity history on the wall of sample tuber are calculated, which accord with the experiment results. The works in this paper account for that code SSS/MHD can be applied in experiment configures of detonation, shock and electromagnetism load and improve of parameters successfully. The experiment data can be estimated, analyzed and checked validly, and the physics course of correlative device can be understood deeply, according to SSS/MHD.