Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model
Numerical simulation of mixed flows combining free surface and pressurized flows is a practical tool to prevent possible flood situations in urban environments. When dealing with intense storm events, the limited capacity of the drainage network conduits can cause undesirable flooding situations. Co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-08-01
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| Series: | Geosciences |
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| Online Access: | http://www.mdpi.com/2076-3263/8/8/288 |
| _version_ | 1811283531558551552 |
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| author | Javier Fernández-Pato Pilar García-Navarro |
| author_facet | Javier Fernández-Pato Pilar García-Navarro |
| author_sort | Javier Fernández-Pato |
| collection | DOAJ |
| description | Numerical simulation of mixed flows combining free surface and pressurized flows is a practical tool to prevent possible flood situations in urban environments. When dealing with intense storm events, the limited capacity of the drainage network conduits can cause undesirable flooding situations. Computational simulation of the involved processes can lead to better management of the drainage network of urban areas. In particular, it is interesting to simultaneuously calculate the possible pressurization of the pipe network and the surface water dynamics in case of overflow. In this work, the coupling of two models is presented. The surface flow model is based on two-dimensional shallow water equations with which it is possible to solve the overland water dynamics as well as the transformation of rainfall into runoff through different submodels of infiltration. The underground drainage system assumes mostly free surface flow that can be pressurized in specific situations. The pipe network is modeled by means of one-dimensional sections coupled with the surface model in specific regions of the domain, such as drains or sewers. The numerical techniques considered for the resolution of both mathematical models are based on finite volume schemes with a first-order upwind discretization. The coupling of the models is verified using laboratory experimental data. Furthermore, the potential usefulness of the approach is demonstrated using real flooding data in a urban environment. |
| first_indexed | 2024-04-13T02:13:11Z |
| format | Article |
| id | doaj.art-e9a23a4303114bef9c4e634fc7fc9789 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-04-13T02:13:11Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-e9a23a4303114bef9c4e634fc7fc97892022-12-22T03:07:14ZengMDPI AGGeosciences2076-32632018-08-018828810.3390/geosciences8080288geosciences8080288Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network ModelJavier Fernández-Pato0Pilar García-Navarro1Fluid Mechanics, Universidad Zaragoza, LIFTEC/CSIC, 50018 Zaragoza, SpainFluid Mechanics, Universidad Zaragoza, LIFTEC/CSIC, 50018 Zaragoza, SpainNumerical simulation of mixed flows combining free surface and pressurized flows is a practical tool to prevent possible flood situations in urban environments. When dealing with intense storm events, the limited capacity of the drainage network conduits can cause undesirable flooding situations. Computational simulation of the involved processes can lead to better management of the drainage network of urban areas. In particular, it is interesting to simultaneuously calculate the possible pressurization of the pipe network and the surface water dynamics in case of overflow. In this work, the coupling of two models is presented. The surface flow model is based on two-dimensional shallow water equations with which it is possible to solve the overland water dynamics as well as the transformation of rainfall into runoff through different submodels of infiltration. The underground drainage system assumes mostly free surface flow that can be pressurized in specific situations. The pipe network is modeled by means of one-dimensional sections coupled with the surface model in specific regions of the domain, such as drains or sewers. The numerical techniques considered for the resolution of both mathematical models are based on finite volume schemes with a first-order upwind discretization. The coupling of the models is verified using laboratory experimental data. Furthermore, the potential usefulness of the approach is demonstrated using real flooding data in a urban environment.http://www.mdpi.com/2076-3263/8/8/288shallow water flowfinite volume modeltriangular meshdrainage network modelcoupling methods |
| spellingShingle | Javier Fernández-Pato Pilar García-Navarro Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model Geosciences shallow water flow finite volume model triangular mesh drainage network model coupling methods |
| title | Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model |
| title_full | Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model |
| title_fullStr | Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model |
| title_full_unstemmed | Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model |
| title_short | Development of a New Simulation Tool Coupling a 2D Finite Volume Overland Flow Model and a Drainage Network Model |
| title_sort | development of a new simulation tool coupling a 2d finite volume overland flow model and a drainage network model |
| topic | shallow water flow finite volume model triangular mesh drainage network model coupling methods |
| url | http://www.mdpi.com/2076-3263/8/8/288 |
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