CFD Investigation of Supersonic Bleed with Discretely Modeled Holes in Cambridge Wind Tunnel at Various Conditions

摘要

Computational Fluid Dynamics (CFD) simulations were conducted of the University of Cambridge experimental wind tunnel configuration with bleed. The simulations were conducted for the Mach 2.5 and Mach 1.8 configurations at multiple pressure ratios in order to study the effects of bleed on the flow. The results were compared to a discrete hole periodic simulation computed previously by the authors, a simulation employing the Slater distributed bleed simulation, and University of Cambridge experiments. The results demonstrate how the bleed changes from the side walls to mid channel and reinforces the previous results demonstrating the effect of bleed on the main flow. The Slater model is shown to perform reasonably well, but cannot take into account some things shown in the discrete hole simulations.