Kolkman flume

The Kolkman flume is used to test the impact of waves and flow on hydraulic structures.

The Kolkman flume is used for investigations related to design details of hydraulic structures, forces on and vibrations of hydraulic structures. The flume has side walls made of glass. The wave generator is capable of generating both regular (periodic) and irregular (random) activated either by a sinus generator or a Personal Computer.

The wave generator is equipped with online Active Reflection Compensation. This means that waves propagating towards the wave board are measured and that the wave board compensates for these reflected waves. In this way these undesired waves do not re-reflect towards the construction and do not disturb the measurements. The discharge boundary condition can be set at any discharge between 0 and 300 l/s. The Kolkman flume is equipped with a measuring bridge that runs on rails.

technical data

dimensions

overall length: 27.7 m

test reach length: 22.4 m

width: 0.5 m

depth of flume: 0.7 m

wave generator

full stroke: +/– 0.25 m

wave characteristics

maximum frequency range: 2.5 Hz

maximum regular wave height Hmax: 0.2 m

discharge

maximum discharge: 300 l/s