06.08.2013 Views

university of florida thesis or dissertation formatting template

university of florida thesis or dissertation formatting template

university of florida thesis or dissertation formatting template

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

LIST OF FIGURES<br />

Figure page<br />

2-1 F-16 st<strong>or</strong>e stations. .............................................................................................................37<br />

2-2 F-16 doublet lattice aerodynamic model ............................................................................37<br />

2-3 F-16 NASTRAN structural model. ....................................................................................38<br />

2-4 Accelerometer locations on F-16 f<strong>or</strong> flight testing. ...........................................................38<br />

2-5 Flutter flight test build-up procedure f<strong>or</strong> altitude vs. Mach vs. calibrated air speed. ........39<br />

4-1 Lissajous phase relationships f<strong>or</strong> various frequency ratios................................................46<br />

4-2 M<strong>or</strong>let mother wavelet. ......................................................................................................46<br />

4-3 Analysis <strong>of</strong> standard 20 Hz sinusoid ..................................................................................47<br />

5-1 Time step comparison <strong>of</strong> upper surface Cp vs. non-dimensional ch<strong>or</strong>d at 88% span<br />

f<strong>or</strong> high sampling rate in red and low sampling rate in blue. ............................................57<br />

5-2 Viscous, unstructured, full-Scale, F-16 surface mesh on left and computational mesh<br />

at 88% span on right. .........................................................................................................58<br />

5-3 Flow results f<strong>or</strong> 8 Hz ± 0.5° pitch oscillations on clean-wing grids: Grid0 on left and<br />

Grid9 on right. ....................................................................................................................59<br />

5-4 Geometric convergence comparison <strong>of</strong> upper (blue) and lower surface (red) Cp vs.<br />

non-dimensional ch<strong>or</strong>d at 93% span f<strong>or</strong> clean-wing grids: coarse Grid0 (dashed<br />

lines) and fine Grid9 (solid lines). .....................................................................................60<br />

5-5 Flow results f<strong>or</strong> 8 Hz ±0.5° pitch oscillations on tip-launcher grids: Grid4 on left and<br />

Grid8 on right. ....................................................................................................................61<br />

5-6 Geometric convergence comparison <strong>of</strong> upper (blue) and lower surface (red) Cp vs.<br />

non-dimensional ch<strong>or</strong>d at 93% span f<strong>or</strong> tip-launcher grids: coarse Grid4 (dashed<br />

lines) and fine Grid8 (solid lines). .....................................................................................62<br />

5-7 Turbulence model comparison <strong>of</strong> upper (blue) and lower surface (red) Cp vs. nondimensional<br />

ch<strong>or</strong>d at 88% span f<strong>or</strong> wing-only Wing1 grid: SARC-DDES (solid<br />

lines), SA-DDES (dotted lines), and SST-DES (dashes lines). .........................................63<br />

5-8 CFD vs. wind tunnel comparison <strong>of</strong> upper (blue) and lower (red) surface Cp vs. nondimensional<br />

ch<strong>or</strong>d at 96% span f<strong>or</strong>: Cobalt CFD tip-launcher Grid8 (solid lines),<br />

Sellers’ tip AIM-9 wind tunnel model (dashed-dotted lines), and Elbers’ underwing<br />

AIM-120 wind tunnel model (open circles). ......................................................................64<br />

9

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!