Print Email Facebook Twitter Designing of a hydrological rainfall-runoff scale model Title Designing of a hydrological rainfall-runoff scale model Author Coussy, E. Contributor Luxemburg, W. Corporate name TU Delft Date 2007-08-01 Abstract The application of a hydrological rainfall-runoff scale model helps to illustrate hydrological processes better than a theoretical example on a black board. For this reason a first version of physical hydrological scale model was designed and built. The goal will be to build a second version which it is possible to move to be used for practical lectures and for demonstrating in lectures of the first year of bachelor. The objective of the scale model is firstly to show the basic concepts of rainfall-runoff like time of concentration and to show that rainfall duration, slope and infiltration influence the shape of the hydrograph. The other aspect is to show the separation between the overland flow and the groundwater flow to see the delay between the both and the different contribution of the both in a river. Moreover, such a scale model can show basic model of rainfall-runoff relationships like rational method or unit hydrograph method or reservoir method. To realize such a scale model, the first issue was to find proper materials to show concepts that happen in real scale in days in a few minutes. The second part was to check by experiments the set-up and to discuss about results. With this first version of the scale model, it is possible to show more than basic concept like time of concentration; it could be used for practical lectures to calibrate a reservoir model for example. Another experiment could be done, with metal valve (and not plastic valve). It will be possible to show that storms that move upstream tend to produce lower peaks of a longer duration than storms that move downstream. The second version with a pressure regulator will increase the possibility of the scale model. It will become a real complex scale model with the possibility to adjust rainfall intensity, rainfall duration, slope, rainfall distribution and effect of the direction of storm movement. Subject rainfall-runoffrunoffscale modeldesignhydrologicalinternship report Classification TKA00 To reference this document use: http://resolver.tudelft.nl/uuid:3514d03c-ca2f-42a5-84c2-c2e67021dc3b Publisher TU Delft Part of collection Hydraulic Engineering Reports Document type report Rights (c) TU Delft Files PDF Report_of_the_traineeship ... ersion.pdf 3.11 MB Close viewer /islandora/object/uuid:3514d03c-ca2f-42a5-84c2-c2e67021dc3b/datastream/OBJ/view