Influence of Initial Conditions on Trajectory of a Submunition via Unsteady Simulation

Numerical simulation on separation of a supersonic submunition from dispenser is conducted via computing unsteady compressible Navier-Stokes equations coupled with 6-DOF body motion equations. Overlapping grid is adopted to reduce time for grid generating and computation. Various linear and angular velocities are set as initial states for unsteady simulation. Effects of various initial states on aerodynamic characteristic and trajectory of the submunition are investigated.