Shallow Water Tank

In this water tank,motions of ships and floating structures on calm water and on waves are checked and hydrodynamic forces acting on ship are measured by using ship-models. Experiments in shallow water and in restricted water are carried out.
This water tank has a wave generator which can work in arbitrary water depth and a towing carriage which equips 2 sub-carriages making possible to move laterally and vertically.

Towing Carriage	speed range : 0.02m/s-2.00m/s electric motor power : 7.5kW×4 speed control : automatic,semi-automatic,manual
Sub-Carriage	lateral line movement : ±2.5m max speed : 0.13m/s vertical line movement : 0.60m-2.00m above tank bottom
Wave Generator	see below
Observation Window	side window(2.0mW×1.0mH)

Wave Generator

This equipment can generate waves regardless of water depth without any adjustment.

Type	piston type driven by oil pressure
Electric Motor Power	15kW
Maximum Stroke of Oil Pressure Cylinder	±0.375m
Wave Period	0.3sec-5.0sec
Maximum Wave Height	0.4m
Kind of Wave	regular wave,irregular wave(controlled by computer)

Wind-Wave Water Tank / Wind Generator

Ship motions derived by wind and aerodynamic forces acting on ship are studied by using ship-models.

Wind Generator	wind speed : max. 8.0m/s duct dimensions : 1.9mW×0.4mH×3 wind speed adjustment : inverter control of electric motor, butterfly valve electric motor power : 30kW
Observation Wind	side window : 1.0mL×0.5mH