Abstract: This paper simulates the process of an airlaunched missile traversing across a shockwave, using a dualtime method based on a motive chimera grids and the K-ω turbulent model. By studying a simple 2D model, the results provide useful reference for understanding interference between the moving missile and the shockware, which may directly affect the velocity and trajectory of the missile.

Key words: dual-time method, K-ω turbulent model, moving chimera grids, shockwave, missile launch