Page 220 - Understanding Flight

CH08_Anderson 7/25/01 9:01 AM Page 207

Aerodynamic Testing 207

Fan

Test
section

Fan

Fig. 8.8. University of Washington Kirsten wind tunnel.

Fig. 8.9. Model in the Kirsten wind tunnel.

wind tunnel has a test section that is 40 ft (12 m) high and 80 ft (24 m)
wide. This wind tunnel can produce winds from 0 to 350 mi/h
(650 km/h). Six fans and six motors, shown in Figure 8.10, drive the
wind tunnel. The railing in front of the upper row of fans gives one the
feeling of the scale. You might also be able to make out the three people