[Under construction]2017 AFOSR MURIPO: Dr. Ivett Leyva, High-Speed AerodynamicsPI: Dr. Brian Argrow, University of Colorado BoulderMURI Website
Our MURI Team proposes to resolve significant operational issues concerning hypersonic vehicle aerothermodynamics, boundary layer stability, and aero-optical propagation. Turbulence measurements and modeling will quantify spatiotemporal statistics and the dependence of stratospheric turbulence on underlying meteorology to a degree nor previously possible. Particle measurements will characterize concentrations in the middle and upper stratosphere.
Applications of these results for hypersonic boundary layer modeling, aero-optical propagation assessments, and linkages from meteorology to stratospheric turbulence statistics will yield the following expected outcomes addressing US Air Force capabilities:
We have identified four key research questions to be addressed in pursuit of these outcomes:
These questions will be addressed through three Research Thrusts: 1) Stratospheric Measurements & Analysis with existing and to-be-developed instruments for high-precision, in-situ measurements of turbulent velocity and temperature fluctuations, and particle distributions; 2) Atmospheric Modeling & Forecasting with computational fluid dynamics for multi-scale modeling of gravity waves coupled with high-resolution simulations of instabilities and small-scale turbulence; and 3) Aerothermodynamics & Aero-Optical Modeling with computational aerothermodynamics to study the role of atmospheric turbulence and particles in causing laminar to turbulent transition in hypersonic boundary layers, and computational and theoretical modeling of aero-optical propagation through the stably stratified atmosphere.