Numerical flow computation around aeroelastic 3D square cylinder using inflow turbulence

Numerical flow computations around an aeroelastic 3D square cylinder immersed in thernturbulent boundary layer are shown. Present computational code can be characterized by three numericalrnaspects which are 1) the method of artificial compressibility is adopted for the incompressible flowrncomputations, 2) the domain decomposition technique is used to get better grid point distributions, and 3)rnto achieve the conservation law both in time and space when the flow is computed a with moving andrntransformed grid, the time derivatives of metrics are evaluated using the time-and-space volume. Tornprovide time-dependant inflow boundary conditions satisfying prescribed time-averaged velocity profiles, arnconvenient way for generating inflow turbulence is proposed. The square cylinder is modeled as a 4-lumped-massrnsystem and it vibrates with two-degree of freedom of heaving motion. Those blocks which surroundrnthe cylinder are deformed according to the cylinder