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4 ANALYSIS TECHNIQUES ..................................................................................................43<br />

Introduction .............................................................................................................................43<br />

Flow Visualization ..................................................................................................................43<br />

Lissajous .................................................................................................................................43<br />

Wavelet Transf<strong>or</strong>m .................................................................................................................44<br />

5 F-16 TOOL DEVELOPMENT ...............................................................................................48<br />

Introduction .............................................................................................................................48<br />

Down-Select Methodology .....................................................................................................48<br />

Grids and Boundary Conditions .............................................................................................49<br />

Time-Step Convergence Study ........................................................................................50<br />

Geometric Convergence Study ........................................................................................51<br />

Turbulence Model Study .................................................................................................54<br />

Preliminary Wind Tunnel Validation ..............................................................................55<br />

6 F-16 ANALYSIS RESULTS ..................................................................................................70<br />

Introduction .............................................................................................................................70<br />

Clean-Wing Roll Oscillations .................................................................................................71<br />

Flow Visualization ...........................................................................................................71<br />

Lissajous Analysis ...........................................................................................................74<br />

Wavelet Analysis .............................................................................................................77<br />

Tip-Launcher Roll Oscillations ..............................................................................................77<br />

Flow Visualization ...........................................................................................................77<br />

Lissajous Analysis ...........................................................................................................80<br />

Wavelet Analysis .............................................................................................................82<br />

Clean-Wing Pitch Oscillations ...............................................................................................83<br />

Flow Visualization ...........................................................................................................83<br />

Lissajous Analysis ...........................................................................................................87<br />

Wavelet Analysis .............................................................................................................91<br />

Tip-Launcher Pitch Oscillations .............................................................................................93<br />

Flow Visualization ...........................................................................................................93<br />

Lissajous Analysis ...........................................................................................................96<br />

Wavelet Analysis .............................................................................................................98<br />

Wing-Only Pitch Oscillations ...............................................................................................100<br />

Flow Visualization .........................................................................................................100<br />

Lissajous Analysis .........................................................................................................103<br />

7 IMPLEMENTATION ...........................................................................................................156<br />

Tool Usage and Interpretation ..............................................................................................156<br />

Impact on Future Design <strong>of</strong> Aircraft and St<strong>or</strong>es ...................................................................157<br />

8 CONCLUSIONS AND OBSERVATIONS .........................................................................158<br />

6

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