Water Tunnels

 

Water Tunnel 1

The large water circulation tunnel of the institute is of Göttingen type. The measuring section is glazed on the first 4.5 meters from the sides and from below and thus accessible for optical measuring techniques. The last 2 meters of the measuring section are surrounded by ribbed sheet steel and therefore not directly accessible. Shortly before the elbow there is a window at the side, through which an illumination is possible by means of laser, the observation can take place from the glazed part.

Technical Data

Taper Ratio		2
Driving Power	kW	30
Volume of Water	m3	60
Measurement Section (WxHxL)	m	1.5 x 1.0 x 6.5
Speed	m/s	0 - 1.8

 

Water Tunnel 2

The small water circulation tank at ILR is a closed water tank with fully glazed measuremnt section. For increasing the Reynolds Number the water can be heated.

Technical Data

Taper Ratio		1.8
Driving Power	kW	21
Volume of Water	m3	6
Measurement Section (WxHxL)	m	0.54 x 0.54 x 1.2
Speed	m/s	0 - 4

 

Water Towing Tank

The water towing tank at the institute is glazed on the sides and bottom. The free water surface has a special cover for damping the surface waves. For model traversing, a towing vehicle guided on rails and driven by a cable pull runs above the measuring section.

Technical Data

Driving Power	kW	23
Volume of Water	m3	13
Measurement Section (WxHxL)	m	1.5 x 1.0 x 9.0
Speed	m/s	0 - 2.5