Influence of urban pattern on inundation flow in floodplains of lowland rivers
作者： M. Bruwier , A. Mustafa , D.G. Aliaga , P. Archambeau , S. Erpicum
DOI: 10.1016/J.SCITOTENV.2017.11.325
关键词:
摘要: Abstract The objective of this paper is to investigate the respective influence various urban pattern characteristics on inundation flow. A set 2000 synthetic patterns were generated using an procedural model providing locations and shapes streets buildings over a square domain 1 × 1 km2. Steady two-dimensional hydraulic computations performed with identical boundary conditions. To run such large amount simulations, computational efficiency was improved by anisotropic porosity model. This computes relatively coarse cells, but preserves information from detailed topographic data through parameters. Relationships between computed water depths have been based multiple linear regressions. Finally, simple mechanistic two district-scale parameters, combining several characteristics, shown capture satisfactorily depths. findings study give guidelines for more flood-resilient planning.
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