Visualization and Quantification System for Modeling Unsteady Aerodynamics for Aircraft Simulations

"Novel approaches in the real-time synchronization and reduction of surface pressure data, flow flied velocities, and force and moment measurements will provide the experimental tools necessary to advance the state of the art in unsteady aerodynamicstesting, modeling, and analysis. Using these tools during dynamic wind-tunnel tests, data will be collected and applied to extensions of unsteady aerodynamic response models based on nonlinear indicial response and internal state methods. Phase I effortswill focus on the analysis of timing, and frequency response of key components in the wind-tunnel test set-up. A limited experiment will be used to verify data synchronization algorithms and related software. Also during phase I, an investigation of theformulation of functional components of nonlinear indicial response and internal state approaches to unsteady modeling. With this information, further investigation into appropriate test motions and reduction techniques will also be performed. Softwaretools for real time flow visualization and data reduction will become a commercial product. Interest is anticipated in the aircraft industry as well as the automotive and motor sports industries. BAR will also provide addition testing, analysis, andmodeling capabilities as a result of this effort that will be offered to both commercial and civil aviation industries."