Propagation of shock waves over a cylinder, sphere and projectile are numerically
simulated. Time dependent full Reynolds averaged Navier-Stokes equations are solved
numerically with Roe’s scheme. For cylinder and sphere, the diffraction pattern, loci of triple
Points and shape of diffraction shocks are obtained and compared with experimental results.
It is shown that good agreement is obtained, and Roe’s method is capable of predicting those
flows. Interaction of a Moving shock wave with flow around a SOCBT projectile is simulated
numerically and flow features, pressure coefficient distribution on the projectile surfaces and
the time histories of the drag force are obtained. Results show that as the Moving shock wave
passes through the projectile, the flow field and aerodynamic forces are changed dramatically.
The time history of the drag force shows that it decreases and even becomes negative while
shock wave passes the projectile.