By using unstructured dynamic overset grids,we can obviate these two shortcomings,thus improving the efficiency and precision of numerical simulation.

Numerical simulation of flowfield of helicopter rotor and fuselage in forward flight based on unstructured embedded grid technique

Two-dimensional simulations about the separation of the interceptor missile shroud covers have been completed using moving multi-block chimera structure grid technique.

Simulation of the release of store based on the moving chimera grid technique;

The flow field of oscillatory wing was divided into different subdomains according to its flow characteristic using the dynamic chimra grid technique.

Spring analogy and remeshing method for dynamic unstructured grids are used to solve the problem of released the cover form cargo projectile.

Using dynamic unstructured grid technology combined by spring analogy and local remeshing,the Euler equation coupled with 6DOF trajectory equations was solved.

For this method, dynamic unstructured grid technique was used, and a MUSCL type finite volume scheme was constructed to discretize the 3D unsteady Euler equations described in ALE frame.