Flow past a cylinder at Re=3900 with immersed boundary conditions

3D LES simulation of turbulent flow past a cylinder at Reynolds number Re=3900. The cylinder wall is modeled by immersed boundary conditions (IBC) with a resolution of *d (d is the cylinder diameter). Farfield conditions are set at 500*d and the wake is refined till 6*d. The spanwise length of the cylinder is equal to pi*d. The mesh contains 90M points. Automatic octree mesh generation and IBC pre-processing are performed by Cassiopée (). The Fast solver () is used to run the simulation with AUSM scheme. More information in AIAA paper 2019-2179 (AIAA Scitech, January 2019, San Diego): “Validation of an immersed boundary method for compressible flows“ Author: T. Renaud (ONERA)