A numerical study on the interaction between a moving shock wave and a spherical vortex

摘要

Te interaction of a planar shock wave with a spherical vortex was numerically investigated by solving the unsteady Eulerian equations using the finite difference method. A compressible spherical vortex wads constructed by time-advancing the equations of motion with properly prescribed initial conditions. The planar shock wave was set initially at a position far upstream of the vortex and the moved toward the vortex with its plane perpendicular to the vortex axis. Different regimes of the shock-vortex interactions were observed during the time-integration with various ranges of shock Mach number and vortex strength.