The Hamburg Ship Model Basin

Setting the Standard in Ship Optimisation

Video 100 years

Conventional Cavitation Tunnels

HSVA has a long experience in cavitation testing and offers three tunnels for cavitation tests. Propellers behind complete ship models are investigated in HYKAT. In the two conventional cavitation tunnels (medium tunnel, large high speed cavitation tunnel) the propellers are tested in simulated ship model wake fields behind wire mesh screens or behind partial appendage models.

Medium cavitation tunnel

 Medium Cavitation Tunnel

Dimension of test section: 0.57 x 0.57 x 2.20 meters
Max. velocity 9.5 m/s
Max. revs. of model propeller 58 1/s
Range of propeller diameter 240-290 mm
Description of facility: Produced by K & R, K22 type
Type of drive system: 4 bladed axial flow impeller, 4-quadrant converter control
Total motor power:

Impeller: 60 kW at 1500 1/min

Propeller: 14.3 kW at 3500 1/min

Max. & min. pressures: 1.5 bar absolut down - vapour pressure
Instrumentation: Laser Doppler Velocimetry
Types and locations of torque and thrust dynam.: Mechanical, upstream, horizontal shaft, 14.3 kW at 3500 1/min
Tests performed: Cavitation tests in uniform flow as well as in simulated wa>

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Large high speed cavitation tunnel

 Large Cavitation Tunnel

Dimension of test section: 0.75 x 2.25 meters, circular
Max. velocity 19.5 m/s
Max. revs. of model propeller 75 1/s
Range of propeller diameter 1. 300-400 mm
2. 280-320 mm
Description of facility: Produced by K & R, K16 type
Type of drive system: 4 bladed axial flow impeller, Leonard-System
Total motor power: Impeller: 350 kW at 375 1/min
Propeller: 130 kW at 4500 1/min
Max. & min. pressures: 2.5 bar absolut down - vapour pressure
Types and locations of torque and thrust dynam.: 1. Mechanical, upstream, horizontal shaft, 130 kW at 4500 1/min
2. Strain gauges, downstream, inclined shaft up to 12 degree
Tests performed: Cavitation tests in uniform flow as well as in simulated wake field. CR and tandem propeller testing, high Reynolds Number testing, partial rudder model testing.