Dv. Voronin et Vf. Anisichkin, Simulation of the behavior of mixtures of heavy particles behind a shock-wave front, COMB EXPL R, 37(4), 2001, pp. 470-474
The two-dimensional inviscid nonstationary flow behind a shock wave passing
through solid uranium dioxide or carbide particles suspended in liquid iro
n was simulated numerically. Such layers can appear inside planets in the v
icinity of the planet's solid core. Shock waves passing in the interior of
a planet (resulting from a possible asteroid impact on the planet) can chan
ge parameters of the layer. The calculations demonstrated that the local pa
rticle mass concentration behind the incident and reflected shock waves inc
reases considerably, which can cause a transition of the layer into a super
critical state and a nuclear explosion inside the planet. The problem was s
olved taking into account possible particle collisions and their deformatio
n and fission as well as changes in the fields of major thermodynamic param
eters inside and outside each particle.