Performance Evaluation of an Internal Osculating Waverider Inlet
Mark E. Noftz, Andrew J. Shuck, Joseph S. Jewell, Jonathan Poggie, Andrew Bustard, Thomas J. Juliano, Nicholas J. Bisek
Abstract
View Video Presentation: https://doi.org/10.2514/6.2023-2352.vid A novel high-speed, shape-transitioned waverider inlet is tested at an on-design condition under Mach 6 quiet flow. The Indiana Inlet is designed for investigation of flow phenomena present in high-performing inward-turning inlets. The model's throat transition profile and sensor layout is presented. Mean pressures in the inlet reveal a shock-wave/boundary-layer interaction and show the utility of a viscous correction for inlet design. Schlieren images verified the hypothesized shock structure. Root-mean-square pressure measured by Kulites shows low frequency peaks in the isolator indicative of shock-wave/boundary-layer interactions. PCB-measured pressure spectra near the inlet's leading edge detect and verify the existence of high-frequency pressure signals at 20--35 kHz. Coherence analysis shows communication between these two forebody sensors. The transition front of the boundary layer along the inward-turning compression surface is demonstrated by Kulite spectra.