Hypersonic Acoustic Loading (HAL)

The work comprised high-resolution direct numerical simulations (DNS) and implicit large eddy simulations (ILES) for high-speed flows and acoustics featuring shock-boundary layer interaction (SBLI). The cases concerned hypersonic flow over a flat panel, SBLI over a compression ramp, and SBLI for the RC-19 tunnel. The SBLI cases included statistically- and dynamically-deformed cases. An assessment of computational requirements for performing high-resolution simulations was also performed. The findings improved our understanding of SBLI, the acoustic near-wall effects, and the role of vorticity in such flows. Furthermore, the research provided insight into the best computational practices for achieving high accuracy in such flows. Finally, the data produced from this award will be used in the future to develop and apply machine learning models and provide insight into the coupling of computational fluid dynamics and structural mechanics methods.