Adaptive turbulent flow simulations for aerospace applications

摘要

A turbulent numerical scheme is presented for adaptive hybrid prismatic/tetrahedral grids. Spatial discretization consists of a finite volume, node-based scheme of central-differencing type. Time marching is performed via the Lax-Wendroff approach. A one-equation turbulence model is implemented for 3-D unstructured grids. The adaptation scheme uses a combination of grid refinement and local point redistribution techniques. The robustness of the developed numerical scheme is tested via internal and external geometries, and results are compared with experiments.