dc.contributor.author | Leandro, Jorge | en_GB |
dc.date.accessioned | 2008-12-05T17:19:46Z | en_GB |
dc.date.accessioned | 2011-01-25T17:26:00Z | en_GB |
dc.date.accessioned | 2013-03-21T13:00:05Z | |
dc.date.issued | 2008-09-22 | en_GB |
dc.description.abstract | The research presented in this Thesis aims at defining the strengths and weaknesses of an Improved 1D/1D model when compared with a more accurate 1D/2D model.
Although both coupled-models (sewer/surface) solve the St.\ Venant equations in both layers, the latter uses a higher approximation (2D two-dimensional) on the surface layer.
Consequently, the 1D/1D model is computationally more efficient when compared to the 1D/2D model, however there is some compromise with the overall accuracy.
The hypothesis is that "The inundation extent of urban flooding can be reproduced by 1D/1D models in good agreement with the 1D/2D models if the results are kept within certain limits of resolution and under certain conditions".
The Thesis starts by investigating ways of improving an existing 1D/1D model to rival the more accurate 1D/2D model.
Parts of the 1D/1D model code are changed and new algorithms and routines implemented.
An innovative GIS tool translates the 1D output-results into 2D flood-inundation-maps enabling a thorough comparison between the two models.
The methodology assures the set-up of two equivalent models, which includes a novel algorithm for calibrating the 1D/1D model vs.\ the 1D/2D model results.
Developments are tested in two distinctly different case studies of areas prone to flooding.
The conclusion is that the 1D/1D model is able to simulate flooding in good agreement with the 1D/2D model; however, it is found that features such as topography, density of the urbanised areas and rainfall distribution may affect the agreement between both models.
The work presented herein is a step forward in understanding the modelling capabilities of the analysed coupled-models, and to some extent may be extrapolated to other models.
Research is growing in urban flooding and this work may well prove to be a strong foundation basis for future research. | en_GB |
dc.identifier.grantnumber | GR/S76304/01 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10036/41949 | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | University of Exeter | en_GB |
dc.rights.embargoreason | Unpublished material in the Thesis | en_GB |
dc.subject | Urban Flood Modelling | en_GB |
dc.subject | Dual Drainage | en_GB |
dc.title | Advanced Modelling of Flooding in Urban Areas: Integrated 1D/1D and 1D/2D Models | en_GB |
dc.type | Thesis or dissertation | en_GB |
dc.date.available | 2008-12-05T17:19:46Z | en_GB |
dc.date.available | 2011-01-25T17:26:00Z | en_GB |
dc.date.available | 2013-03-21T13:00:05Z | |
dc.contributor.advisor | Djordjevic, Slobodan | en_GB |
dc.contributor.advisor | Dragan, Savic | en_GB |
dc.description | Flood Risk Management Research Consortium (FRMRC) | en_GB |
dc.publisher.department | Centre for water systems | en_GB |
dc.type.degreetitle | PhD in Engineering | en_GB |
dc.type.qualificationlevel | Doctoral | en_GB |
dc.type.qualificationname | PhD | en_GB |