Table of Contents
Title Page
Acknowledgments
Outline
Background
Problem
Objectives
Technical Challenges
PPT Slide
PPT Slide
PPT Slide
Actuator Beam Model
Finite Element Beam Model
PPT Slide
Modes of Flow-Induced Cavity Resonance
Effects of Amplitude and Frequency on Open-Loop Control (L/D = 0.5)
Open-Loop Control
Effect of OL Control on Velocity Fluctuations (L/D = 0.5, fcontrol = 256 Hz)
Physical Mechanism of Actuators
Closed-Loop Control
Closed-Loop Control (L/D = 0.5)
Closed-Loop Control (L/D = 2.0)
PPT Slide
PPT Slide
PPT Slide
Initial Conclusions
High-Speed Experiments
PPT Slide
Experimental Data Analyses Techniques
Unsteady Pressure Spectrum L/D = 2.0, M? = 0.4, ReL = 2.5 million
Instantaneous Schlieren Images of Shear-Layer Structure
Piezo Actuator Development
Advanced Actuator Development
Adaptive Control Schemes
Adaptive Control Schemes
Current Status
Reduced-Order Modeling
Quantitative Schlieren Method
Validation of Instrument
Construct Time-Resolved Movie with Quantitative Schlieren Data
Construct Time-Resolved Movie of Schlieren & Velocity Data (Kegerise 1999)
ROM Conclusions
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