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Library > Fact Sheets > AFOSR: Hypersonics and Turbulence
AFOSR: HYPERSONICS AND TURBULENCE
Air Force Office of Scientific Research
Aerospace, Chemical and Material Sciences Directorate
AFOSR Links
Frequently Asked Questions
Hypersonics and Turbulence
Dr. John Schmisseur, Program Manager
The hypersonics and turbulence portfolio is focused on providing the fundamental fluid physics knowledge base for future aerospace systems. Through a balance of experiments, analytical modeling, and numerical simulations a fundamental understanding of critical fluid dynamic phenomena is achieved. Research supported by this program enables methods for flow prediction and optimization that, in the short-term, will reduce the weight, cost and fuel-consumption of future systems, and in the long-term, will enable completely new, revolutionary vehicle designs.
National Hypersonic Foundational
Research Plan
The behavior of the boundary layer impacts the aerodynamic performance of systems across all speed regimes of interest to the Air Force. The development of accurate methods for predicting the behavior of transitional and turbulent boundary layers across a wide range of flow conditions will facilitate the design of future systems with optimized performance and fuel-economy. To help accomplish this goal, research is solicited that will provide critical insight into the fundamental physical processes of laminar-turbulent transition and turbulent flows. Improved turbulence modeling approaches are sought for the prediction of flow and heat transfer in highly strained turbulent flows. In this context, original ideas for modeling turbulent transport, especially ideas for incorporating the physics of turbulence into predictive models are sought.
Hypersonic aerodynamics research is critical to the Air Force's interest in long-range and space operations. The size and weight of a hypersonic vehicle, and thus its flight trajectory and required propulsion system, are largely determined by aerothermodynamic considerations. Research areas of interest emphasize the characterization, prediction and control of high-speed fluid dynamic phenomena including boundary layer transition, shock/boundary layer, and shock/shock interactions, and other phenomena associated with airframe-propulsion integration. High-temperature gas kinetics, aerothermodynamics and interactions between the hypersonic flow and thermal protection system materials are of particular interest.
Researchers are highly encouraged to submit short white papers prior to developing full proposals. White papers are encouraged as an initial and valuable step prior to proposal development and submission. White papers should briefly relate the current state-of-the-art, how the proposed effort would advance it, and the approximate yearly cost for a three year effort. Researchers with white papers of significant interest will be invited to submit full proposals.
For more information, click on each of the following:
Research Trends in the Hypersonics and Turbulence Portfolio
Reorganization of Fluids Program
Importance of Boundary Layer Research
Critical Research Issues for Hypersonics
Research in Aerothermodynamics and High-Temperature Materials
Contact:
Dr. John Schmisseur
AFOSR/NA
Tele: (703) 696-6962
DSN 426-6962
FAX (703) 696-8451
Email: john.schmisseur@afosr.af.mil
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