Effects of Joints in Two Beryllium Hemispheres Used to Form an Ignition Capsule211 for the National Ignition Facility

摘要

2-D numerical results under the program 'MTMOZA' were presented in the report for211u001ethe first stage. These results were obtained from solution of the problems of the 211u001eshock ware passage through a joint between two flat beryllium plates which is 211u001efilled with Al. Two problems have been considered with varying joint (gap) width. 211u001eIt was demonstrated, that the intrinsic oscillations, arising in a narrow gap 211u001ehave an amplitude comparable with the gap width, therefore they must have 211u001eessentially nonlinear character, resulting in fast mixing with the surrounding 211u001ematter.