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09/03/2016 09:54:27

CH2M’s Global Technology Leader for Flood Modelling, Dr. Jon Wicks, supported Cardiff University’s Reza Ahmadian and Professor Roger Falconer, in a comparison of 1D-2D linking methods used to simulate embankment failure now published in the Journal of Flood Risk Management.

Comparisons of the different methods were made by implementing 1D-2D linked models. These models used two different linking methods, namely water levels and discharges, using both the alternating direction implicit (ADI) and total variation diminishing (TVD) 2D numerical schemes, which are widely used in flood models such as Flood Modeller Pro.

The flood inundation levels and extent predicted by each numerical scheme were similar when the discharge method was used to link the models, whereas they were dependent on the numerical scheme when the water-level method was used.

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