2-D GAS DYNAMIC EFFECTS FROM A SHELL MOTION IN A CONE FUSION TARGET

V. V. Rasskazova, V. G. Rogachev, N. F. Svidinskaya
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1985. Вып.3. С. 39-47.

      2-D gas dynamic flows near the joint of the shell and the cone fusion target surface are studied. The main results are obtained from solving 2-D gas dynamics equations with a numerical method and from analytical solutions of the Riemann problem in the region of the shell and target surface joint. The calculations were performed for targets with apex angle, θ = 45 and 90°. and for various equations -of-state describing the target material.
      It is shown that the flow pattern may be both stationary (with θ > θ*),) and time-dependent (with θ < θ*). For cone targets under consideration, the critical angle, θ*, is defined by an equation-of-state for shell material and target walls. A time-dependent flow pattern is characterized by forming a cumulative jet propagating into the gas region.