Penetration of plane cumulative stream into ideally conducting obstruction with transversal magnetic field

Possibility of compression and drastic growth of intensity for the magnetic field generated in the conducting obstruction at the interaction of high-speed strikers, is shown. Numerical modeling of the plane stream penetration into ideally conducting obstruction with transversal magnetic field reveals that the field compression in the thin layer of the obstruction material on the boundary of contact with cumulative stream, can be caused by effects capable of influencing the penetration process. One of possible effects being the cavern collapse by the generated stream, is analyzed.