用动网格方法模拟导弹发射过程中的燃气射流流场

采用局部非结构网格弹性变形方法和网格再生方法相结合的动网格技术，计算导弹与发射简具有相对运动的燃气射流非定常流场。计算中将安置在发射简内的导弹作为运动实体，随着导弹运动，相应流场计算域边界发生变化。计算结果表明，采用动网格技术模拟导弹发射过程中燃气射流的非定常流场，具有较高的精度。

Simulation of Jet Flow During Missile Launching with Dynamic Mesh

The thesis take an efficient way,dynamic mesh technology integrating partial unstructured grids' with spring-based smoothing method and remeshing method,to calculate unsteady flow between missile and launch canister which include relative movement.It takes missile laid in the launch canister as movement entity,with the missile moving,the boundary of the corresponding flow field will change.We can make a conclusion from the result: it has high precision using dynamic mesh to simulate unsteady flow of jet flow in the process of missile launch.