Numerical Analysis for Isentropic Compression of Initially Uniform and Finally Nonuniform Pd Sphere

摘要

By using the method of characteristics, numerical calculations are carried out to analyze the isentropic compression of a spherical DT pellet whose initial state is uniform and whose final state is nonuniform (available for igniting a burning wave). Through such an isentropic compression, the central part of the pellet can be compressed to a high density and a high temperature. It is shown that a thermonuclear burning wave which is ignited in this part propagates into the other parts of a pellet. Thus a large pellet gain of order 100 can be expected to be realized through this kind of isentropic compression.