Development of a Comprehensive Axisymmetric Shock/Boundary-Layer Interaction Validation Case

A new axisymmetric shock/boundary-layer interaction (SBLI) validation case, designed for evaluation of turbulent computational modeling techniques, was developed and is detailed herein. A recently obtained experimental data set for a SBLI generated by a 16-deg cone and with approach Mach number of 2.5 was obtained utilizing multiple measurement techniques. These measurements focused not only on the SBLI region but also upstream to detail the inflow boundary condition state for computational simulations. An axisymmetric configuration was employed to remove sidewall effects, which have plagued studies of nominally planar two-dimensional SBLIs in rectangular test sections. Three established Reynolds-averaged Navier–Stokes (RANS) solvers were evaluated in the validation effort, using two broadly used eddy-viscosity RANS turbulence models, the Spalart–Allmaras one-equation and Menter Shear Stress Transport (SST) two-equation formulations. Computational peculiarities of specific turbulence models implementations in the three codes and effects on solutions are detailed. Grid sensitivities were also investigated. Additionally, an evaluation of variants of the Menter [Formula: see text] family of models was also conducted. The shear stress limiter implicit to the SST model was observed to have significant effect on the resultant SBLI predictions. The results of this effort have produced a new validation case for the NASA Turbulence Modeling Resource.