Comparison of dynamic flow interaction methods between pipe system and overland in urban flood analysis.

Scientific Reports
Xiaoli HaoShu Liu

Abstract

Urban flooding can be predicted by using different modeling approaches. This study considered different methods of modeling the dynamic flow interactions between pipe systems and surface flooding in urban areas. These approaches can be divided into two categories based on surface runoff collection units. This paper introduces a new hydrodynamic model that couples the storm water management model and the 2D overland model. The model's efficiency was validated based on the aforementioned experimental dataset; agreement was verified by correlation values above 0.6. Additionally, this study used different approaches and compared their accuracy in predicting flooding patterns. The results show that the use of sub-catchments to model the collection of surface runoff was not predictive of the inundation process, indicating a lower goodness of fit with the recorded values than that of adopting cells. Moreover, to determine which method of adopting cells to collect runoff could better predict rainstorm-induced inundation, an error and correlation analysis was conducted. The analysis found low error and high correlation, suggesting that inundation can be effectively predicted by the new approaches. Ultimately, this study contributes to e...Continue Reading

References

Sep 24, 2010·Water Science and Technology : a Journal of the International Association on Water Pollution Research·N D Sto DomingoB Paludan
Dec 4, 2012·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Slobodan DjordjevićGavin Sailor
Jun 25, 2014·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Ricardo MartinsRita Fernandes de Carvalho
Jun 23, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Jorge Leandro, Ricardo Martins

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Software Mentioned

FullSWOF
FSMIC
SWMM
Full Shallow Water equations for Overland Flow ( FullSWOF - 2D )

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