Microstructures and photocatalytic properties of metal ions doped nanocrystalline TiO2 films

Abstract

Based on the ALE (Arbitrary Lagrangian-Eulerian) method, 2nd-order AUSM scheme, and dynamic mesh technology of combining spring-based smoothing method and local remeshing-based zone-moving the method, the simultaneous solving method for hydrodynamic equations and six degrees of freedom motion equations is realized to solve the loosely coupled problem of dynamic flow field coupling with six degrees of freedom relative motion of multi-body. The complicated supersonic jet with one kind of coming stream condition is simulated numerically using the second order AUSM scheme, agreement between the wave structures and experimental schlieren photograph are fairly satisfactory which indicates the fluid dynamics numerical method is reliable. The numerical model of the dynamic separation for a penetrator is established under the consideration of gravity, aerodynamic force, overturning moment, and variable topology movement. The numerical experiments are performed.