U.S. Air Force Summer Faculty Fellowship Program

U.S. Air Force Summer Faculty Fellowship Program

U.S. Air Force Summer Faculty Fellowship Program

U.S. Air Force Summer Faculty Fellowship Program

412th Test Wing, Edwards Air Force Base, California

SF.60.14.B1014: High-Fidelity CFD Modeling

Farid Rafla

661-275-9048

Our primary focus is on research of multi-disciplinary high-fidelity modeling and simulation rooted in computational fluid dynamics (CFD) and computational structural dynamics. We are seeking highly-qualified and motivated individuals for collaboration in the advancement of current state-of-the-art methodology in specific research areas while enhancing the capabilities of tools employed by USAF to support test and evaluation. Applicants that utilize current U.S. DOD and/or NASA codes will be given preference. Previous access to U.S. DOD HPC resources is also preferred. Opportunities for focused research include the following topics:

• The assessment of large-eddy simulation (LES) and hybrid (RANS-LES) turbulence modeling approaches for prediction of unsteady vortex-dominated, turbulent, transitional, and compressible flows over full-aircraft configurations through highlighting advantages and limitations via validation and verification. Specific unsteady phenomena of interest include: tail buffet, vortex breakdown, leading-edge separation, aeroacoustics, and shock-induced separation/wing buffet.

• Application of CFD-based hypersonic modeling and simulation to applied (e.g., high-speed precision weapon systems as well as manned and unmanned re-entry vehicles) problems that support real-world test and evaluation activities. Specific topics of interest include simulation of: aerothermoelasticity, chemically reacting near-body flows, shock-wave boundary layer interaction, aero-optical distortion, and ablating materials.

• Advancement of reduced-order modeling (ROM) techniques for aerodynamic, aeroelastic, and aerothermoelastic data sets in an effort to provide a near real-time prediction capability to test programs in a variety of flight regimes/conditions. Ideally, these ROM techniques would be applicable to M&S predictions, wind tunnel databases, and flight test results. Specific prediction capabilities sought include fast and accurate reconstruction of aerodynamic forces and moments (structural loads), temperature and heat-rate monitoring (thermal loads), and flowfield and surface property visualization.

SF.60.17.B0001: Flight Test Education and Test Techniques

Cotting, Chris

(661)-277-4517

The UASF Test Pilot School is the world’s premier institution for flight test education. We teach flight test techniques and flight test planning methods for both piloted and unpiloted fixed wing vehicles. We are seeking highly-qualified and motivated individuals for collaboration in the advancement of current state-of-the-art methodology in specific research and teaching areas while enhancing the capabilities of tools employed by USAF TPS to support test and evaluation education. Opportunities for focused research include the following topics:

  • Advancement of our ability to teach complex topics to our students in minimal time using modern engineering education techniques, including the flipped classroom, direct application of theoretical concepts to student flight tests, simulation exercises that reinforce academic concepts, and educational tools for use in classroom and homework exercises.
  • UAS curriculum evaluation and development to include specific flight test techniques for UAS platforms. USAF TPS is building a UAS flight testing curriculum and welcomes input for review and evaluation from others. TPS is also researching techniques to increase pilot/operator effectiveness in the presence of multiple seconds of time delay between a ground station and aircraft. TPS is also interested in instrumentation of Group I, II, and III UAS.
  • Human interaction with complex systems to include Handling Qualities of complex control systems to include adaptive/robust systems and the prediction of new operational flight envelopes when robust control is actively accounting for uncertainties.

TPS has state of the art flight simulation capabilities and rapid prototyping of control going from simulation model to flight within the same day. TPS has unique access to multiple aircraft, and staff capable of conducting advanced/complex flight testing.

SF.60.17.B0002: Statistical Modeling

Poulson, Robert

(661) 277-4031

As part of the Air Force Test Center, the 412th Test Wing located at Edwards AFB plans, conducts, analyzes, and reports on all flight and ground testing of aircraft, weapons systems, software and components as well as modeling and simulation for the USAF. Statistically defensible testing is an inherent component of developing and conducting quality tests and is infused throughout the testing and reporting process. Opportunities for current and future research and development of statistical methods include the following topics:

  • Develop experimental designs to optimize flight time and minimize constraint on randomization.
  • Use Bayesian methods to build predictive models and develop posterior distributions of complex, hierarchical flight test systems.
  • Research tail sampling to better understand inferences on percentiles including order and extreme value statistics.
  • Develop methods for modeling time series and spatial statistics related to flight tests.
  • Develop categorical data analysis methods to improve testing of human interaction with flight test systems. Such as survey analysis, testing of audio and communication systems, and human interface with flight systems.
  • Build supporting software in R and/or Python packages that would facilitate implementation of statistical methods into flight testing.

Air Force Test Center

Douglas Hoffelt
AFTC Technology Transfer & Research Manager
1 South Rosamond Blvd, Bldg 1
Edwards AFB, CA 93524
Phone: (661) 277-9111/DSN: 527-9111
E-mail: douglas.hoffelt.1@us.af.mil