DYNAMICS OF IMPLODING LINER FOR FLUX COMPRESSION

抄録

A solution of nonlinear equation of imploding rotating liner is derived in the incompressible model. The solution is applied, in the early stage of compressible liner implosion, for computer calculations of both one layer and two layer liners, which makes possible a significant reduction in the computation time. Energy balance and wave phenomenon in the liner are examined with use made of compressible hydrodynamics computer codes developed. Although the energy delivered to the liner rotation is large at the maximum compression, it strongly depends on the liner thickness and the angular velocity. In a liner with the angular velocity-shear, the rotation energy is found to be much reduced. In a two layer liner, a pressure wave reflected from the interface is also found to give important consequence to the liner dynamics.