HYKAT
HSVAs Hykat (Hydrodynamic and cavitation tunnel) is designed with focus on hydrodynamic and hydroacoustic performance ensuring velocity uniformity, low turbulence in the test section and a very low noise level.
- Propeller and rudder cavitation observations
- Cavitation inception investigations
- Thrust break down
- Force measurements
- Determination of hydrodynamic coefficients from manoeuvring tests
- Flow visualization
- Noise tests on complete hull - appendage - propulsor configurations
- Investigations on surface ships, submarines, torpedoes and full scale propulsor units
- Flow noise investigations
- Wake measurements
- Friction tests
- Type of drive system: 2 electric motors (each 850 kW)
- Impeller: 3.775 m diameter seven bladed
- Stator with nine blades
- Test section max. velocity: 12.6 m/s (22.5 knots)
- Max. & min. absolute pressures: 2.5 bar, 0.15 bar
- Dimension of test section: 2.80 x 1.60 x 11.00 meters, allowing installation of complete ship models
- Propeller and model size range: Up to 11.0 m length, 1.7 m beam, propeller diameter 200 to 300 mm
- Max. revs. of model propeller: 60 1/s
- Aeration/deaeration system
- Propeller dynamometer with drive motors inside flooded models
- Pressure sensors
- Hydrophones in acoustical trough under the test section floor or in the models
- Video system inside the flooded models
- Laser-Doppler-Velocimetry (LDV)
- Planar Motion mechanism (PMM)
- High speed video system
- Particle-Image-Velocimetry (PIV)
- Data acquisition system