6 Wind and Water Tunnel Equipment
425
Fig. 6.48 Re and total pressure curve of NTF test section, US
Fig. 6.49 NTF test vent, US
(viscosity), and pneumatic elastic dynamic pressure effect, through
total temperature and total pressure and the combination of fan speed.
The range of Reynolds number per meter in the test section can be
obtained as 6.6 × 10 6 −75.7 × 10 6 /m, and Mach number range as
0.1−12. The test section is 2.5 m wide, 2.5 m high, and 7.6 m long.
In order to prevent the blocking of transonic flow, six grooves are
425
Fig. 6.48 Re and total pressure curve of NTF test section, US
Fig. 6.49 NTF test vent, US
(viscosity), and pneumatic elastic dynamic pressure effect, through
total temperature and total pressure and the combination of fan speed.
The range of Reynolds number per meter in the test section can be
obtained as 6.6 × 10 6 −75.7 × 10 6 /m, and Mach number range as
0.1−12. The test section is 2.5 m wide, 2.5 m high, and 7.6 m long.
In order to prevent the blocking of transonic flow, six grooves are