Two-dimensional (2D) numerical modelling of rainfall induced overland flow, infiltration and soil erosion: comparison with laboratory rainfall-runoff simulations on a two-directional slope soil flume

Abrantes João R.C.B.; Simões Nuno E.; de Lima João L.M.P.; Montenegro Abelardo A.A.

doi:10.2478/johh-2021-0003

Journal of Hydrology and Hydromechanics (Jun 2021)

Two-dimensional (2D) numerical modelling of rainfall induced overland flow, infiltration and soil erosion: comparison with laboratory rainfall-runoff simulations on a two-directional slope soil flume

Abrantes João R.C.B.,
Simões Nuno E.,
de Lima João L.M.P.,
Montenegro Abelardo A.A.

Affiliations

Abrantes João R.C.B.: Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Rua Luís Reis Santos, Pólo II – Universidade de Coimbra, 3030-788 Coimbra, Portugal.
Simões Nuno E.: Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Rua Luís Reis Santos, Pólo II – Universidade de Coimbra, 3030-788 Coimbra, Portugal.
de Lima João L.M.P.: Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Rua Luís Reis Santos, Pólo II – Universidade de Coimbra, 3030-788 Coimbra, Portugal.
Montenegro Abelardo A.A.: Department of Rural Technology, Rural Federal University of Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 50910-130 Recife, PE, Brazil.

DOI: https://doi.org/10.2478/johh-2021-0003
Journal volume & issue: Vol. 69, no. 2
pp. 140 – 150

Abstract

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This paper presents a two-dimensional (2D) numerical model of soil erosion and sediment transport resulting from rainfall induced overland flow. It is a spatial and temporal dynamic model combining physical and empirical laws and comprises: i) An overland flow module that solves the two-dimensional unsteady water flow equations on an infiltrating surface; ii) A soil infiltration module that uses a combined Horton-SCS scheme; and iii) A soil erosion and sediment transport module that solves the two-dimensional sediment transport equation, distinguishing between rill erosion, interrill erosion and sediment deposition.

Published in Journal of Hydrology and Hydromechanics

ISSN: 0042-790X (Print); 1338-4333 (Online)
Publisher: Sciendo
Country of publisher: Poland
LCC subjects: Technology: Hydraulic engineering
Website: https://sciendo.com/journal/JOHH

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