2D Hydrodynamic Models


Two-dimensional steady and unsteady flood and tide simulations describe the spatial motion of water bodies together with their flow pattern in coastal waters, estuaries, rivers and floodplains. These domains typically raise flow patterns being essentially 3D in nature. If a logarithmic velocity distribution can be assumed, 2D depth integrated models are a common simplification of the complex flow pattern. They permit efficient computations and faster feedback to engineering questions. Usually these domains cannot be represent using a 1D network model without a dramatic loss of information and accuracy. 2D models are the typical choice to model complex spatial distributions of the water surface level, that can be considered as response surface to its domain. Hence typical applications comprise amongst others flood extent modelling, considerations within the vicinity of structural encroachments, overtopping of a levee or the determination of risk due to flood in urban and industrial areas close to rivers. Denoting complex interactions of different water streams, 2D models are frequently coupled with 1D models. Exemplarily these connected models may serve the simulation of complex overland flow together with the simultaneous consideration of piped urban flows.

Headers and keywords
Page content

< Previous   Next >

Hydrodynamics of Floods






Further Information