Morphological pilot-experiment Vinje-basin

Morphological pilot-experiment Vinje-basin

Ha, V.C.

D'Angremond, K. (mentor)
Fontijn, H.L. (mentor)
Van de Graaf, J. (mentor)
Roelvink, J.A. (mentor)

Civil Engineering and Geosciences

Hydraulic Engineering

2001-09-01

This paper evaluates the behaviour and the usefulness of a 3D morphological pilot-experiment. It reports the set up and execution of a 3D wave-current physical model in more detail. Furthermore, a selection of the collected data will be compared with computational output from a 3D morphological model. The bathymetries are mainly determined by a new waterline detection method. The application of this model will be evaluated. The morphological pilot-experiment showed that despite the limited equipment it is feasible to carry out such test. However, the calibration of the upstream sand supply requires much attention. Comparing the measurements of the pilot-experiment with the computational results gives a qualitative agreement. Simultaneous observation of the process parameters such as longshore current and concentration shows significantly lower values than the computer predicted values. Analysing the images ofthe video with the new waterline detection technique appears to be working, but is not very accurate because ofthe sensitivity to the spurious reflections. The morphological impact around structures would be more accurately determined with advanced measurement instruments, operated from a moveable carriage. For longer experimental programmes, an efficient sediment supply system and a more sophisticated sandtrapping and pumping system are necessary in order to keep the model running smoothly.

pilot-experiment
waterline detection technique
verification

http://resolver.tudelft.nl/uuid:950e0c74-4d3a-4ba0-b308-b08278200d57

TU Delft, Civil Engineering and Geosciences, Hydraulic Engineering

Student theses

master thesis

(c) 2001 Ha, V.C.