Numerical investigation of flows around an axisymmetric body of revolution by using Reynolds-stress model based hybrid Reynolds-averaged Navier–Stokes/large eddy simulation

Flows around an axisymmetric body of revolution at a zero yaw angle were studied using hybrid Reynolds-averaged Navier–Stokes (RANS)/large eddy simulation (LES) approach, which employed full Reynolds stress model (RSM) in the RANS branch with aim accounting for anisotropy, streamline curvature, and flow separations boundary layer. The SUBOFF without appendages was applied to conduct simulations, number based on free-stream velocity length is ReL=1.2×106. results, including time-averaged Cp, Cf, statistics, compared experimental data wall-resolved LES results available literature, overall agreement comparisons satisfactory. To assess performance RSM-based RANS/LES we carried out shear-stress transport-based approach simulations under identical conditions comparison. sensitivity models observed separated surface curvature adverse pressure gradient-induced separation. found provide better prediction unsteady flows near stern. That because effects strong interactions between individual stresses can be captured by exact production terms approach. These are important predicting development turbulent layers along