Effect of energy dissipation on the shaped-charge flow regime

Convergence of a viscous shaped-charge liner to the symmetry axis is described. It is shown that energy dissipation has a significant effect on the process considered. Convergence at small angles can lead to a strong phase explosion of the metastable liquid of the inner, strongly heated, layers of the liner, which is comparable toTNT explosion. An increase in the angle of convergence results in a weak phase “explosion,” which leads to different behavior of shaped-charge jets for different types of linear material. Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090. Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 41, No. 4, pp. 3–11, July–August, 2000.