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RAP opportunity at Air Force Science and Technology Fellowship Program     AF STFP

Aerodynamic Response to Deforming Surfaces in High-Speed Flow


Aerospace Systems Directorate, RQ/High Speed Systems Division

opportunity location
13.30.13.C0700 Arnold AFB, TN 373894000


name email phone
Scott Jacob Peltier 931-454-5692


The aerodynamic performance of high-speed flight systems may be influenced by the condition of the vehicle surface, resulting in potential changes to control surface effectiveness, flowpath performance, and overall drag. Since the structural components of these vehicles will experience extreme thermal/mechanical/acoustic loading, understanding the aerodynamic sensitivity to structural deformation and damage is critical to accurately predicting vehicle performance. This research is focused on improving our knowledge of high-speed aerodynamic behavior over irregular surfaces through experimental exploration, including deformation induced by aeroelastic and aerothermoelastic behavior. Insight is sought into the energy exchange mechanisms between deforming surfaces (e.g. panel flutter) and the surrounding flowfield, with the ultimate goal of identifying the sensitivity of the supersonic fluid dynamics to surface motion. An AFRL-operated 12”x12” variable-Mach number (1.5 to 5.0) wind tunnel is available to address these challenges, along with a suite of non-intrusive and high-speed measurement techniques. In-house diagnostics include (but aren’t limited to) tomographic particle image velocimetry (PIV), pressure sensitive paint (PSP), high-speed schlieren imaging, and kHz-rate digital image correlation (DIC). Lab space is available for further development of advanced diagnostics, as well as benchtop evaluation of novel test techniques.

PA Case number AFRL-2020-0475

key words
High-speed flows; Boundary layer; Fluid dynamics; Surface deformation; Advanced laser diagnostics; Turbulence; Structures; Aeroelasticity; Flutter; Fluid-structure interactions


Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants


Base Stipend Travel Allotment Supplementation
$95,000.00 $5,000.00

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

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