10.5061/DRYAD.B65FJ
Quinn, Daniel B.
Stanford University
Watts, Anthony
Jacobs (United States)
Nagle, Tony
Stanford University
Lentink, David
Stanford University
Data from: A new low-turbulence wind tunnel for animal and small vehicle
flight experiments
Dryad
dataset
2017
gust mitigation
unmanned aerial vehicles
wind tunnel
flight stability
2017-03-02T15:35:13Z
2017-03-02T15:35:13Z
en
https://doi.org/10.1098/rsos.160960
148975932 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Our understanding of animal flight benefits greatly from specialized wind
tunnels designed for flying animals. Existing facilities can simulate
laminar flow during straight, ascending and descending flight, as well as
at different altitudes. However, the atmosphere in which animals fly is
even more complex. Flow can be laminar and quiet at high altitudes but
highly turbulent near the ground, and gusts can rapidly change wind speed.
To study flight in both laminar and turbulent environments, a
multi-purpose wind tunnel for studying animal and small vehicle flight was
built at Stanford University. The tunnel is closed-circuit and can produce
airspeeds up to 50 m s−1 in a rectangular test section that is 1.0 m wide,
0.82 m tall and 1.73 m long. Seamless honeycomb and screens in the airline
together with a carefully designed contraction reduce centreline
turbulence intensities to less than or equal to 0.030% at all operating
speeds. A large diameter fan and specialized acoustic treatment allow the
tunnel to operate at low noise levels of 76.4 dB at 20 m s−1. To simulate
high turbulence, an active turbulence grid can increase turbulence
intensities up to 45%. Finally, an open jet configuration enables stereo
high-speed fluoroscopy for studying musculoskeletal control in turbulent
flow.
Wind Tunnel Aeroacoustic Testing DataThe uploaded aeroacoustic data were
taken in the empty test section during wind tunnel commissioning. See the
Wind Tunnel Data README file for details on file
structure.QuinnEtAl_Data.zip