A coupled surface-subsurface model of overbank flood flow and air entrapment in a permeable floodplain

D. Pokrajac, M. J. S. de Lemos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a coupled surface-subsurface flow model which simulates flow over a permeable floodplain during a flooding event. A simple hypothetical example is used for illustrating the effects of the floodplain permeability (i.e. surface-subsurface exchange) and air entrapment in the subsurface on the surface flow characteristics. The results show that, for initially unsaturated conditions of a soil which forms a floodplain, neglecting both water and air movement in the subsurface may lead to significant errors in predicted characteristics of the surface flow during a flooding event which involves overbank flow.

Original languageEnglish
Title of host publicationRiver Flow 2014
Subtitle of host publicationProceedings of the International Conference on Fluvial Hydraulics
EditorsAnton J. Schleiss, Giovanni De Cesare, Mario J. Franca, Michael Pfister
PublisherCRC Press/Balkema
Pages591-596
Number of pages6
ISBN (Electronic)9781498704427
ISBN (Print)9781138026742
DOIs
Publication statusPublished - 2014
Event7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014 - Lausanne, Switzerland
Duration: 3 Sep 20145 Sep 2014

Conference

Conference7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014
CountrySwitzerland
CityLausanne
Period3/09/145/09/14

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  • Cite this

    Pokrajac, D., & de Lemos, M. J. S. (2014). A coupled surface-subsurface model of overbank flood flow and air entrapment in a permeable floodplain. In A. J. Schleiss, G. De Cesare, M. J. Franca, & M. Pfister (Eds.), River Flow 2014: Proceedings of the International Conference on Fluvial Hydraulics (pp. 591-596). [75] CRC Press/Balkema. https://doi.org/10.1201/b17133-82