Cavitation Tunnel

Type K 15 B , Kempf & Remmers, Germany (vertical set-up), closed circulation, closed work section.

Cavitation tunnel

Dimensions Other parameters
Length (between vertical axes): 12 m
Height (between horizontal axes): 2.6 m		 Absolute pressure, max: 200 kPa
Absolute pressure, min: 6 kPa
Cavitation tunnel

Instrumentation

  • Propeller dynamometer No. 1 Type J25, Kempf & Remmers, Germany, for testing propeller models.
  • Propeller dynamometer No. 2 Type H41, Kempf & Remmers, Germany, for testing propeller models (including ducted-type propellers) in axial and oblique flows. Coaxial (counter-rotating or tandem) propellers can be tested when operating jointly with dynamometer J25.
  • Propeller dynamometer No. 3 Type R45, Kempf & Remmers, Germany, watertight, for testing propeller models attached to a ship hull, installed in the measurement section 2
  • Propeller dynamometer No. 4 Type R46, Kempf & Remmers, Germany, watertight, for testing propeller models attached to a ship hull, installed in the measurement section 2
  • Six-component balance Type H36, Kempf & Remmers, Germany, for testing ducted propellers, rudders, hydrofoils and various axisymmetric bodies.
  • Wake rake – fourteen Pitot-static tubes for measurement of axial flow distribution
  • 3-D Wake rake – six 5-hole Pitot tubes for measurement of 3-D flow distribution
  • Pressure transducers
  • Miniature pressure transducers for measuring pressure distributions on propeller blades and ship hull
  • Amplifiers and filters
  • Electronic counters
  • Equipment for acoustic measurement
  • Digital voltmeters
  • Digital frequency meters
  • High precision digital pressure gauges
  • Laser Doppler anemometer
  • Strobe and HD video system
  • Data acquisition system – NI multifunctional DAQ cards and LabVIEW software
  • HD video and photo documentation of the experiments
  • High-speed camera

Measurement section No. 1 (square, rounded corners)

Dimensions Other parameters
Length: 2.6 m
Width: 0.6 m
Depth: 0.6 m		 Min. cavitation number: 0.2
Max. flow velocity: 14 m/s
Max. propeller diameter: 0.3 m
Measurement section No. 1

Measurement section No. 2 (rectangular)

Dimensions Other parameters
Length: 6 m
Width: 1.4 m
Depth: 0.7 m		 Max. flow velocity: 4.5 m/s
Max. ship model length: 5 m
Measurement section No. 2