(MURI 17) Integrated Measurement and Modeling Characterization of Stratospheric Turbulence
Abstract
This MURI Team proposes to resolve significant operational issues concerning hypersonicvehicle aerothermodynamics, boundary layer stability, and aero-optical propagation. Turbulencemeasurements and modeling will quantify spatiotemporal statistics and the dependence ofstratospheric turbulence on underlying meteorology to a degree nor previously possible. Particlemeasurements will characterize concentrations in the middle and upper stratosphere.Applications of these results for hypersonic boundary layer modeling, aero-optical propagationassessments, and linkages from meteorology to stratospheric turbulence statistics will yield thefollowing expected outcomes addressing US Air Force capabilities:• Quantify the roles of atmospheric turbulence and particle concentrations on laminarturbulenttransition for hypersonic flight conditions.• Rigorously connect the atmospheric turbulence state to the disturbance forcing amplitude ofrelevant boundary layer instability mechanisms.• Understand how atmospheric particles interact with a hypersonic flow field and promoteinstability growth and transition to turbulence.• Quantify the impacts of stratospheric turbulence spatiotemporal statistics and larger-scalecoherent refractive index fluctuations on long-distance aero-optical propagation.• Provide a “strawman” stratospheric turbulence forecasting scheme accounting for variableenvironments and energy inputs from meteorology at lower altitudes.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501810009
Entities
People
- Brian Argrow
Organizations
- Air Force Office of Scientific Research
- Regents of the University of Colorado
- United States Air Force