Multi-directional Wave and Current Basin

Multidirectional sea states with a max. wave height of 0.47 m can be produced in the 3D wave basin (dimensions: 40 m x 24 m) for water depth up to 1 m.

Description of facility:

Technical data

This facility is a multidirectional wave and current basin (WB) with 2nd order wave generation and active wave absorption. The overall wave basin dimensions are 30 m in width and 15 m in length. It is equipped with a state-of-the-art multidirectional wave maker – consisting of 72 piston wave paddles (each 0.4 m wide and 1.8 m high) – and used to generate 1st and 2nd order regular waves and nature-like long and short crested wave spectra on a total length of 28.8 m. The wave maker can operate with a maximum stroke of 1.2 m and a maximum paddle velocity of 3.0 m/s. A high-class multilayer mesh screen absorber acts as a passive wave absorber East, West and South in the basin. By high-precision real-time analysis of the distinct surface elevation at each wave paddle the active absorption control enables properly experiments over long time frames including the following boundary conditions and features covering a wide range of needs:

• Directional waves with variable wave angles up to ±55° to the perpendicular line of the wave maker
• Maximum significant wave height: Hs = 0.25 m
• Up to 1.0 m water depth
• Active absorption of re-reflected signals up to 6 Hz
• Current generation (5.0 m3/s) parallel to the wave maker up to 0.3 m/s for 1m water depth over the entire basin width
• Extra large sand pit 7.0 x 5.0 x 1.2 m (LxWxD) in the center of the basin with circumferential sand trap on demand

 Back