Experimental Study of Aeroelastic Response and Performance of a Hypersonic Intake Ramp
- 1 January 2022
- journal article
- research article
- Published by American Institute of Aeronautics and Astronautics (AIAA) in Journal of Propulsion and Power
- Vol. 38 (1), 157-170
- https://doi.org/10.2514/1.b38348
Abstract
The response and performance of an aeroelastic hypersonic intake was studied experimentally using fundamental geometry and structural boundary conditions. The experiments were conducted in a hypersonic wind tunnel at a Mach 5.85 condition. The most relevant deforming component was the compression ramp, which was treated as a cantilever surface to emulate the global deformation of the intake. Flowfield measurements were performed using pressure transducers, pressure-sensitive paints, and schlieren flow visualization. The dynamic structural response was measured using digital image correlation as well as feature tracking from the schlieren videos. A point measurement of total pressure in the isolator was taken using a pitot tube to quantify the effects of intake ramp deformation on the intake performance. The loss of total pressure in the isolator was found to correlate directly with the intake ramp deformation, with a direct transient correlation between the peak loss in total pressure recovery and the peak ramp deformation. While undergoing aeroelastic deformation, the total pressure recovery of the cantilever compliant ramp decreased by up to 20% from the baseline values. The analysis showed a strong coupling, along with hysteresis in dynamic response, between the intake structural deformation and the shock-wave/boundary-layer flowfield in the isolator.Keywords
Funding Information
- Air Force Office of Scientific Research (FA2386-19-1-4027)
- National Computational Infrastructure
This publication has 25 references indexed in Scilit:
- Advances in Computational Fluid Dynamics Methods for Hypersonic FlowsJournal of Spacecraft and Rockets, 2015
- Aeroelastic Simulation of Hypersonic Flight VehiclesAIAA Journal, 2012
- Boundary-Layer Stability Calculations for the HIFiRE-1 Transition ExperimentJournal of Spacecraft and Rockets, 2008
- Flight Data Analysis of the HyShot 2 Scramjet Flight ExperimentAIAA Journal, 2006
- Coupled thermal, structural and vibrational analysis of a hypersonic engine for flight testAerospace Science and Technology, 2006
- A Parallel Unstructured Implicit Solver for Hypersonic Reacting Flow SimulationPublished by Elsevier BV ,2006
- Data-Parallel Line Relaxation Method for the Navier-Stokes EquationsAIAA Journal, 1998
- Verification of Codes and CalculationsAIAA Journal, 1998
- Thrust Losses in Hypersonic Engines Part 1: MethodologyJournal of Propulsion and Power, 1997
- Viscous interaction over concave and convex surfaces at hypersonic speedsJournal of Fluid Mechanics, 1972