Lund Wind Tunnel
Aerodynamics of animal flight can be studied by several approaches. The use of wind tunnels for animal flight experiments is extremely appealing because it enables the researcher to observe the flying animal while it is flying in the test section. Furthermore, the environmental conditions can be accurately controlled and monitored. Thereby, high-speed cameras can register details of the wing motions, accelerations of the body and wake dynamics can be measured.
The Lund wind tunnel was built in 1994. It is a low-speed low-turbulence wind tunnel which was specifically designed for studying bird flight, although nowadays we also study both bats and insects. Some of the special features of the wind tunnel are that there is an opening between the test section and the bellmouth, so the researcher can have quick and easy access to the flying animal. Also, the Lund wind tunnel can be tilted to simulate climbing and gliding flight. A detailed description and technical account of the Lund wind tunnel is given by Pennycuick et al. (1997), see Additional information.