IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : Comparison of 3d numerical modelling with an experimental scaled-model of urban flooding
Comparison of 3d numerical modelling with an experimental scaled-model of urban flooding
Author : R. F. Carvalho1, M. Oertel2, T. Motz3, R. Martins4 & J. Leandro5
Flood modeling of urban areas demands sophisticated models for simulating a wide range of conditions. However, good quality data of flood events are hazardous to obtain, hence the thorough validation of drainage models is difficult. An experimental scaled-model comprising a 1 % slope rectangular surface-channel with a cross-sectional area of 0.5 x 0.5 m with six identical 21 mm diameter inlets at the bottom was set-up. The experimental collected data was compared with FLOW- 3D numerical model for a wide range of boundary conditions. Systematic data of inletís discharge, water levels and velocity fields for different number and configuration of inletís opening and varying boundary conditions are presented. Although the numerical results showed a fair agreement with the laboratory measurements, the study also highlighted the difficulty to calibrate 3D numerical models in order to enhance the experimental data.
File Size : 845,502 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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