Turbulent Simulations of Cooling Jets in Crossflow

Turbulent flow simulations were completed of the Turbulent Heat Flux Phase III (THX-III) single-hole film cooling experiment performed at NASA Glenn Research Center (GRC). Two different large-eddy simulation (LES) approaches were completed along with a Reynolds-averagev Navier-Stokes (RANS) study. The first LES approach utilizes the flux reconstruction (FR) based finite element code GFR, while the second approach utilizes the compact difference solver FDL3DI. Both LES codes were run on grids in excess of 1.5 billion degrees of freedom (DoF), and at two different blowing ratios (BRs). The RANS simulations used FUN3D, and included a grid convergence and turbulence closure study. A summary of the computational approaches and key findings are presented alongside the experimental measurements. The LES approaches have excellent agreement with each other, and closely follow the trends of the experimental measurements. The Reynolds stress model, while the best of the RANS results, had difficulty matching the results of the LES and experimental measurements.