Simulation of unsteady multi-body flowfield involving relative movement based on unstructured mesh

The thesis develops a new method to take value of stiff coefficient in spring,and integrated unstructured dynamical mesh with 6Dof motion, to calculate unsteady flow between R/S UAV and lunched weapon. GMRES implicit method was implored to solve unsteady Euler flow. Major trends of the separation are captured, and the security of R/SUAV at the transition process is also confirmed.