1,800,000 Node-Hours

This project investigates how supersonic wall-bounded turbulent flows are affected by the thermal wall boundary condition and how they interact with flexible walls. High-fidelity simulations at different Mach numbers, Reynolds numbers, and imposed wall temperatures will be used to create a database that advances the theoretical description of how the mean velocity profile scales with these factors. As current theories fail at high Mach numbers for either strongly cooled walls or nearly adiabatic walls, the results of this work will be used to develop a predictive model that remains accurate across all flow conditions. This, in turn, will lead to improved modeling techniques for near-wall turbulence and improved semi-empirical friction.

This project also considers the interaction between supersonic turbulent boundary layers and shockwaves in the presence of rigid and flexible walls, and will create highly resolved reference data for several such cases, including cases with crossflow that create skewed mean velocity profiles. These data will be used to assess and validate modeling techniques for near-wall turbulence in the context of large eddy simulations.