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Article

An Enhanced Flume Testing Procedure for the Study of Rill Erosion

1
School of Civil and Environmental Engineering, Universidade Federal de Goiás, Av. Universitária, Setor Universitário, Goiânia CEP 74605-220, GO, Brazil
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Dam Safety and Technology Department, Furnas Centrais Elétricas S.A., Eletrobras Furnas, BR153, Km 510, Zona Rural, Aparecida de Goiânia, Goiânia CEP 74923-650, GO, Brazil
3
Industrial and Systems Engineering Postgraduate Program (MEPROS), Pontifical Catholic University of Goiás (PUC Goiás), Av. Universitária 1.440, Setor Universitário, Goiânia CEP 74605-010, GO, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Vito Ferro and Alessio Nicosia
Water 2021, 13(21), 2956; https://doi.org/10.3390/w13212956
Received: 25 August 2021 / Revised: 4 October 2021 / Accepted: 7 October 2021 / Published: 20 October 2021
(This article belongs to the Special Issue Soil Erosion Measurement Techniques and Field Experiments)
This paper presents the development and verification of an improved and cost-effective flume apparatus and corresponding testing methodology. A rigorous analysis of the flow conditions during testing was considered and an interpretation of test results was carried out following the premises of the Water Erosion Prediction Project (WEPP) rill erosion model. The apparatus and methodology were verified using statically compacted specimens of a latosol from the central region of Brazil. Tests were performed on samples with void ratios of 1.0 and 1.5 and under variable hydraulic conditions to verify the repeatability and ideal analysis time for the soil loss curves. The soil loss curves presented hyperbolic behavior, with a maximum value that appeared to be randomly behaved, which can be attributed to the complex nature of the erosion processes at later stages. The equipment and testing methodology produced erosion curves with repeatability that were superior with respect to their initial linear and transition portions. Recommendations are made regarding the adequate interpretation of the testing data and the selection of the ideal elapsed time for soil loss analysis. View Full-Text
Keywords: soil erosion; water erosion; flume test; experimental tests; WEPP model soil erosion; water erosion; flume test; experimental tests; WEPP model
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MDPI and ACS Style

de Oliveira, V.N.; Gitirana, G.d.F.N., Jr.; dos Anjos Mascarenha, M.M.; Sales, M.M.; Varrone, L.F.R.; da Luz, M.P. An Enhanced Flume Testing Procedure for the Study of Rill Erosion. Water 2021, 13, 2956. https://doi.org/10.3390/w13212956

AMA Style

de Oliveira VN, Gitirana GdFN Jr., dos Anjos Mascarenha MM, Sales MM, Varrone LFR, da Luz MP. An Enhanced Flume Testing Procedure for the Study of Rill Erosion. Water. 2021; 13(21):2956. https://doi.org/10.3390/w13212956

Chicago/Turabian Style

de Oliveira, Vinícius Naves, Gilson de F. N. Gitirana Jr., Marcia Maria dos Anjos Mascarenha, Mauricio Martines Sales, Luiz Felipe Ramos Varrone, and Marta Pereira da Luz. 2021. "An Enhanced Flume Testing Procedure for the Study of Rill Erosion" Water 13, no. 21: 2956. https://doi.org/10.3390/w13212956

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