RAP opportunity at Air Force Science and Technology Fellowship Program AF STFP
Physics-Informed Optical Diagnostics for High-Speed Flows
Location
Aerospace Systems Directorate, RQ/High Speed Systems Division
| opportunity |
location |
|
| 13.30.13.C1010 |
Arnold AFB, TN 373894000 |
Advisers
| name |
email |
phone |
|
| Chris Clifford |
christopher.clifford.5@us.af.mil |
931 454 7985 |
Description
The proposed research opportunity aims to improve accuracy and quantify uncertainty of optical diagnostic techniques by integrating physics-informed models with optical measurements. Optical diagnostic techniques offer non-intrusive insights but often measure quantities which do not faithfully represent the flow physics of interest, such as tracer particles which experience momentum and drag relative to their parent flow. Ill-posed inverse problems such as tomography utilize numerical regularization such as smoothness and symmetry, which do not reflect the physics of time-varying, turbulent, and shock-laden flows of interest to the hypersonic community. This research will focus on the integration of physics-informed models with advanced optical diagnostic measurements such as laser-induced fluorescence (LIF), particle image velocimetry (PIV), particle tracking velocimetry (PTV), background-oriented schlieren (BOS), and their higher-dimensional counterparts like time-accurate tomography. The use of physics-informed processing and analysis techniques will extract more information and insights than what can be achieved through traditional techniques. This enhanced fidelity can be leveraged for increased accuracy, quantifiable uncertainty, and novel deployment in challenging environments.
Distribution Statement A: Approved for Public Release; Distribution is Unlimited. PA# AFRL-2024-5784
key words
non-intrusive diagnostics; optical diagnostics; laser diagnostics; high-speed; high-Reynolds number; turbulent; turbulence; supersonic; hypersonic; flow physics; machine vision; machine learning; neural network; physics informed; pinn; inverse problem; tomography;
Eligibility
Citizenship:
Open to U.S. citizens
Level:
Open to Postdoctoral and Senior applicants
Stipend
| Base Stipend |
Travel Allotment |
Supplementation |
|
| $95,000.00 |
$5,000.00 |
|
Experience Supplement
Postdoctoral and Senior awardees will receive an appropriately higher stipend based on the number of years of experience past their PhD.
|
Additional Benefits
Relocation
Awardees who reside more than 50 miles from their host laboratory and remain on tenure for at least six months are eligible for paid relocation to within the vicinity of their host laboratory.
Health insurance
A group health insurance program is available to awardees and their qualifying dependents in the United States.