Facilities
Experimental facilities
New experimental facilities were developed at the University of Warwick for this project.
An existing wide flume was equipped with a laser induced florescence (LIF) system. For the first time, this new system allowed for the detection of solute at better than millimetre resolution. This took place across a line in 2D space, across the channel width at two locations.
A new deep flume was also constructed, allowing for flow depths of over one metre. It was similarly equipped with the new LIF system.
Combined, these flumes allowed for investigations into full channel width. Partially, they allowed for investigations in great detail into submerged vegetation flow conditions.
The deep flume
The flume is 24 meters long by 1.5 meters deep.
Before side panelling
After side panelling
Looking into the flume
The LIF measurement system
In the laser induced florescence system, a laser cuts across the channel from the side. Any dye passing it fluoresces, making it visible to the camera looking up from under the flume.
The laser window in the channel bed
The image acquisition system
The lasers turned on
Real vegetation
One of the main project objectives was to obtain a set of measurements around real vegetation.
Vegetation as it arrived in the lab
Vegetation in the wide flume