3.1 Subsonic Wind Tunnels for Aeronautics
65
Fig. 3.20 The S1 wind tunnel of the Institute of Fluid Mechanics in Toulouse (dimensions in mm)
(© IMFT)
contributes to the studies on separation control on generic automobile configurations
and recently an experiment on electro-active wing morphing of future airplane was
conducted.
The S4 wind tunnel of IMFT closed loop facility was built in the mid-1970s
in order to satisfy the experimental needs and to provide complementary aspects of
a closed circuit facility (low level of turbulence, air filtration). The S4 wind tunnel
has a rectangular test section (0.60 × 0.70 m
2 ) with axial expansion to compensate
for the development of boundary layers on the tunnel walls (see Fig. 3.21). The
temperature stabilised flow can reach a velocity of 55 m/s for a turbulence level of
the order of 0.1%. The S4 wind tunnel is used for fundamental studies on turbulence
modelling, flow control and fluid-structure interactions. It is equipped with traverse
system for hot wire probes with four degrees of freedom (three in translation and
one in rotation) and advanced means of laser metrology (TR-PIV-3C and TR-PIV
at high speed). The S4 wind tunnel hosts innovative prototype of aircraft wings for
studies on electro-active morphing.
Fig. 3.21 The S4 wind tunnel of the Institute of Fluid Mechanics in Toulouse (© IMFT)
65
Fig. 3.20 The S1 wind tunnel of the Institute of Fluid Mechanics in Toulouse (dimensions in mm)
(© IMFT)
contributes to the studies on separation control on generic automobile configurations
and recently an experiment on electro-active wing morphing of future airplane was
conducted.
The S4 wind tunnel of IMFT closed loop facility was built in the mid-1970s
in order to satisfy the experimental needs and to provide complementary aspects of
a closed circuit facility (low level of turbulence, air filtration). The S4 wind tunnel
has a rectangular test section (0.60 × 0.70 m
2 ) with axial expansion to compensate
for the development of boundary layers on the tunnel walls (see Fig. 3.21). The
temperature stabilised flow can reach a velocity of 55 m/s for a turbulence level of
the order of 0.1%. The S4 wind tunnel is used for fundamental studies on turbulence
modelling, flow control and fluid-structure interactions. It is equipped with traverse
system for hot wire probes with four degrees of freedom (three in translation and
one in rotation) and advanced means of laser metrology (TR-PIV-3C and TR-PIV
at high speed). The S4 wind tunnel hosts innovative prototype of aircraft wings for
studies on electro-active morphing.
Fig. 3.21 The S4 wind tunnel of the Institute of Fluid Mechanics in Toulouse (© IMFT)