Investigation of Transonic Drag Computations in Aerodynamic ...
Investigation of Transonic Drag Computations in Aerodynamic ...
Investigation of Transonic Drag Computations in Aerodynamic ...
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<strong>Investigation</strong> <strong>of</strong> <strong>Transonic</strong> <strong>Drag</strong> <strong>Computations</strong> <strong>in</strong> APAS<br />
he f<strong>in</strong>al comparison results, Figures 51 and 52, show the complete results from each<br />
program. Comparison <strong>of</strong> the two figures shows that APAS and WAVDRAG agree on the<br />
relative magnitudes <strong>of</strong> the wave drag coefficients <strong>of</strong> the six trial configurations.<br />
APAS Wavedrag<br />
0.45<br />
0.4<br />
0.35<br />
C d<br />
0.3<br />
0.25<br />
0.2<br />
0.15<br />
Trial 1<br />
Trial 2<br />
Trial 3<br />
Trial 4<br />
Trial 5<br />
Trial 6<br />
0.1<br />
0.05<br />
0<br />
1 1.1 1.2 1.3 1.4 1.5 1.6<br />
Mach #<br />
Figure 51. Summary <strong>of</strong> APAS Wave <strong>Drag</strong> Results<br />
WAVDRAG<br />
0.3<br />
C d<br />
0.25<br />
0.2<br />
0.15<br />
0.1<br />
0.05<br />
Trial 1<br />
Trial 2<br />
Trial 3<br />
Trial 4<br />
Trial 5<br />
Trial 6<br />
Trial 1<br />
Trial 2<br />
Trial 3<br />
Trial 4<br />
Trial 5<br />
Trial 6<br />
0<br />
1 1.1 1.2 1.3 1.4 1.5 1.6<br />
Mach #<br />
Figure 52. Summary <strong>of</strong> WAVDRAG Wave <strong>Drag</strong> Results<br />
Jeff Miller 40
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