The development of the shallows has become essential in the fight against hunger in Burkina Faso. In addition, rivers there are subject to massive silting up caused by erosion. These sedimentary deposits tend to gradually reduce the flow section, thus promoting the retention of pollutants in streams. So in order to prevent this phenomenon, it is important to have tools to predict the evolution of sedimentation. The coupled equation of Shallow-water-Exner, treated from the complete system, was used in this study. Indeed, the complexity of the analytical resolution of this equation requires to adopt a numerical resolution. The finite volume method was chosen. The first step was to collect sedimentation data from the lowland of Sindou using locally made tools. Simulations are carried out in order to test the model's performance. Sensitivity analysis showed that the model is sensitive to disturbances in friction and slope parameters of the field. The results showed the tool's ability to simulate the sedimentation of actual unsatisfactory cases. In fact, bad appreciation of parameters, friction and the absence of the topographic data generate a large margin of error between the simulated and observed values showing a difference in the shape of the carried sediments curves.
| Published in | Hydrology (Volume 8, Issue 4) |
| DOI | 10.11648/j.hyd.20200804.11 |
| Page(s) | 62-68 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2020. Published by Science Publishing Group |
Lowland, Finite Volume Method, Streams, Equation Shallow-water-Exner, Sedimentation
| [1] | M. Hotte et M. Quirion, “Guide technique no 15. Traverses de cours d’eau”, p. 131-140, 2003. |
| [2] | P. Bernatchez, “Caractérisation côtière du territoire de la Table de concertation régionale, zone de Québec”, p. 78-80, 2016. |
| [3] | J. Somda, “Valeur économique de la vallée du Sourou: Evaluation préliminaire”. IUCN, p. 157-159, 2010. |
| [4] | E. V. NGNEPI TOUKEP, “Conception et aménagement de bas-fonds en zone Soudano-sahélienne selon la technologie smart-valleys: cas de barjongo et tensega au Burkina Faso”. Ouagadougou, BURKINA FASO, p. 37-38, 2019. |
| [5] | M. GNANE, “Conception et réalisation participatives d’aménagements de bas-fonds suivant l’approche smart-valleys en zone sud soudanienne: cas des sites pilotes de Sindou et de Banflagoue-fon au Burkina Faso”. Ouagadougou, BURKINA FASO, p. 24-25, 2018. |
| [6] | Bama Nati Aïssata Delphine, Niang Dial, Gbané Mahama, Ouedraogo Ibrahima, Boube Bassirou, and Ngnepi Toukep Elvire Vanessa, 2019. “Adaptation and Resistance of Smart Valleys Bunds in Sudanians’ Lowland: Experience in Four Lowlands in Burkina Faso.” American Journal of Water Resources, vol. 7, no. 2 (2019): 58-61. doi: 10.12691/ajwr-7-2-3. |
| [7] | Africa Rice Center (Africa Rice).2017. http://www.africaricecenter.org. The manual, developed by T Defoer, M-J Dugué, M Loosvelt and S Worou, is available in English and French. It is supported by the film “Smart-valleys. |
| [8] | Fashola, OO, Olaniyan, G, Aliyu, J et Wakatsuki, T 2002, Comparative evaluation of farmers' paddy field system and the SAWAH system for better and sustainable rice farming in inland valley swamps of Nigeria, in 5th African Crop Science Conference proceedings, pp. 615-619. |
| [9] | D. A. Lyn et M. Altinakar, “St. Venant–Exner equations for near-critical and transcritical flows”, J. Hydraul. Eng., vol. 128, n° 6, p. 579–587, 2002. |
| [10] | S. Martínez-Aranda, J. Murillo, et P. García-Navarro, “Coupled method for the numerical simulation of 1D shallow water and Exner transport equations in channels with variable cross-section”, in E3S Web of Conferences, 2018, vol. 40, p. 05012. |
| [11] | M. C. Dı, E. D. Fernández-Nieto, A. Ferreiro, C. Parés, et others, «Two-dimensional sediment transport models in shallow water equations. A second order finite volume approach on unstructured meshes», Comput. Methods Appl. Mech. Eng., vol. 198, n° 33-36, p. 2520–2538, 2009. |
| [12] | E. Meyer-Peter et R. Müller, “Formulas for bed-load transport”, in IAHSR 2nd meeting, Stockholm, appendix 2, 1948, p. 130. |
| [13] | H. P. Gunawan, “Numerical simulation of shallow water equations and related models”. Paris Est, p. 146-148, 2015. |
| [14] | E. D. Fernández-Nieto, T. M. de Luna, G. Narbona-Reina, et J. de Dieu Zabsonré, “Formal deduction of the Saint-Venant–Exner model including arbitrarily sloping sediment beds and associated energy”, ESAIM Math. Model. Numer. Anal., vol. 51, n° 1, p. 115–145, 2017. |
| [15] | R. Abrahami, «Erosion et flux sédimentaires associés dans un bassin versant soumis à un régime de mousson: l’exemple de la Tista (Inde), du Sikkim au mégafan”, p. 321-326, 2015. |
| [16] | P. Ung, «Simulation numérique du transport sédimentaire: aspects déterministes et stochastiques». p. 271-278, 2016. |
APA Style
Bama Nati Aïssata Delphine, Kouakou Ariel Michée, Leye Babacar. (2020). Numerical Modeling of River Sedimentation: Application to the Rice Farming Lowlands of Sindou, Burkina-Faso. Hydrology, 8(4), 62-68. https://doi.org/10.11648/j.hyd.20200804.11
ACS Style
Bama Nati Aïssata Delphine; Kouakou Ariel Michée; Leye Babacar. Numerical Modeling of River Sedimentation: Application to the Rice Farming Lowlands of Sindou, Burkina-Faso. Hydrology. 2020, 8(4), 62-68. doi: 10.11648/j.hyd.20200804.11
AMA Style
Bama Nati Aïssata Delphine, Kouakou Ariel Michée, Leye Babacar. Numerical Modeling of River Sedimentation: Application to the Rice Farming Lowlands of Sindou, Burkina-Faso. Hydrology. 2020;8(4):62-68. doi: 10.11648/j.hyd.20200804.11
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.hyd.20200804.11,
author = {Bama Nati Aïssata Delphine and Kouakou Ariel Michée and Leye Babacar},
title = {Numerical Modeling of River Sedimentation: Application to the Rice Farming Lowlands of Sindou, Burkina-Faso},
journal = {Hydrology},
volume = {8},
number = {4},
pages = {62-68},
doi = {10.11648/j.hyd.20200804.11},
url = {https://doi.org/10.11648/j.hyd.20200804.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.hyd.20200804.11},
abstract = {The development of the shallows has become essential in the fight against hunger in Burkina Faso. In addition, rivers there are subject to massive silting up caused by erosion. These sedimentary deposits tend to gradually reduce the flow section, thus promoting the retention of pollutants in streams. So in order to prevent this phenomenon, it is important to have tools to predict the evolution of sedimentation. The coupled equation of Shallow-water-Exner, treated from the complete system, was used in this study. Indeed, the complexity of the analytical resolution of this equation requires to adopt a numerical resolution. The finite volume method was chosen. The first step was to collect sedimentation data from the lowland of Sindou using locally made tools. Simulations are carried out in order to test the model's performance. Sensitivity analysis showed that the model is sensitive to disturbances in friction and slope parameters of the field. The results showed the tool's ability to simulate the sedimentation of actual unsatisfactory cases. In fact, bad appreciation of parameters, friction and the absence of the topographic data generate a large margin of error between the simulated and observed values showing a difference in the shape of the carried sediments curves.},
year = {2020}
}
TY - JOUR T1 - Numerical Modeling of River Sedimentation: Application to the Rice Farming Lowlands of Sindou, Burkina-Faso AU - Bama Nati Aïssata Delphine AU - Kouakou Ariel Michée AU - Leye Babacar Y1 - 2020/11/27 PY - 2020 N1 - https://doi.org/10.11648/j.hyd.20200804.11 DO - 10.11648/j.hyd.20200804.11 T2 - Hydrology JF - Hydrology JO - Hydrology SP - 62 EP - 68 PB - Science Publishing Group SN - 2330-7617 UR - https://doi.org/10.11648/j.hyd.20200804.11 AB - The development of the shallows has become essential in the fight against hunger in Burkina Faso. In addition, rivers there are subject to massive silting up caused by erosion. These sedimentary deposits tend to gradually reduce the flow section, thus promoting the retention of pollutants in streams. So in order to prevent this phenomenon, it is important to have tools to predict the evolution of sedimentation. The coupled equation of Shallow-water-Exner, treated from the complete system, was used in this study. Indeed, the complexity of the analytical resolution of this equation requires to adopt a numerical resolution. The finite volume method was chosen. The first step was to collect sedimentation data from the lowland of Sindou using locally made tools. Simulations are carried out in order to test the model's performance. Sensitivity analysis showed that the model is sensitive to disturbances in friction and slope parameters of the field. The results showed the tool's ability to simulate the sedimentation of actual unsatisfactory cases. In fact, bad appreciation of parameters, friction and the absence of the topographic data generate a large margin of error between the simulated and observed values showing a difference in the shape of the carried sediments curves. VL - 8 IS - 4 ER -
Information
Email: