On interface conservative attributions for computations of the complex flows of high-lift system based on chimera technique

Chimera grids method has broad applications in complex flow field simulations because of its convenience of the arbitrary boundary interfaces and the easiness of gird generations of subzones. However, the main disadvantage or challenging difficulty lies in the global conservative information exchange between different zones or components. This work aims at assessing of the conservation and effects of the mass flux based interpolation (MFBI) in chimera multi-grid flow solvers where Renolds-Averaged Navier-Stokes (RANS) equations and different turbulence models are introduced to calculate the viscous flows over several high-lift systems. A numerical result reveal that, compared to the direct interpolation scheme, the performance of global conservation of MFBI is much better and also guarantees the coincidence with wind-tunnel experiments.