Validation of 2D shock capturing flood models around a surcharging manhole

Ricardo Martins; Georges Kesserwani; Matteo Rubinato; Seungsoo Lee; Jorge Leandro; Slobodan  Djordjevic; James D.  Shucksmith

doi:10.1080/1573062X.2017.1279193

Validation of 2D shock capturing flood models around a surcharging manhole

Ricardo Martins^*, Georges Kesserwani, Matteo Rubinato, Seungsoo Lee, Jorge Leandro, Slobodan Djordjevic, James D. Shucksmith

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

This work offers a detailed validation of finite volume (FV) flood models in the case where horizontal floodplain flow is affected by sewer surcharge flow via a manhole. The FV numerical solution of the 2D shallow water equations is considered based on two approximate Riemann solvers, HLLC and Roe, on both quadrilateral structured and triangular unstructured mesh-types. The models are validated against a high resolution experimental data-set obtained using a physical model of a sewer system linked to a floodplain via a manhole. It was verified that the sensitivity of the models is inversely proportional to the surcharged flow/surface inflow ratio, and therefore requires more calibration from the user especially when concerned with localised modelling of sewer-to-floodplain flow. Our findings provide novel evidence that shock capturing FV-based flood models are applicable to simulate localised sewer-to-floodplain flow interaction.

Original language	English
Pages (from-to)	892-899
Journal	Urban Water Journal
Volume	14
Issue number	9
Early online date	20 Feb 2017
DOIs	https://doi.org/10.1080/1573062X.2017.1279193
Publication status	Published - 20 Feb 2017

Bibliographical note

Copyright © 2017 the author(s). Published by Informa UK limited, trading as taylor & Francis Group. This is an open access article distributed under the terms of the Creative Commons attribution license (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

Floodplain flow
sewer overflow
dual drainage experiments
approximate Riemann solvers
shallow water equations
quadrilateral vs triangular meshes

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10.1080/1573062X.2017.1279193

Validation of 2D shock capturing flood models around a surcharging manhole URBAN WATER JOURNAL
Copyright © 2017 the author(s). Published by Informa UK limited, trading as taylor & Francis Group. This is an open access article distributed under the terms of the Creative Commons attribution license (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Final published version, 2.08 MBLicence: CC BY 4.0

Cite this

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title = "Validation of 2D shock capturing flood models around a surcharging manhole",

abstract = "This work offers a detailed validation of finite volume (FV) flood models in the case where horizontal floodplain flow is affected by sewer surcharge flow via a manhole. The FV numerical solution of the 2D shallow water equations is considered based on two approximate Riemann solvers, HLLC and Roe, on both quadrilateral structured and triangular unstructured mesh-types. The models are validated against a high resolution experimental data-set obtained using a physical model of a sewer system linked to a floodplain via a manhole. It was verified that the sensitivity of the models is inversely proportional to the surcharged flow/surface inflow ratio, and therefore requires more calibration from the user especially when concerned with localised modelling of sewer-to-floodplain flow. Our findings provide novel evidence that shock capturing FV-based flood models are applicable to simulate localised sewer-to-floodplain flow interaction.",

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AU - Djordjevic, Slobodan

AU - Shucksmith, James D.

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N2 - This work offers a detailed validation of finite volume (FV) flood models in the case where horizontal floodplain flow is affected by sewer surcharge flow via a manhole. The FV numerical solution of the 2D shallow water equations is considered based on two approximate Riemann solvers, HLLC and Roe, on both quadrilateral structured and triangular unstructured mesh-types. The models are validated against a high resolution experimental data-set obtained using a physical model of a sewer system linked to a floodplain via a manhole. It was verified that the sensitivity of the models is inversely proportional to the surcharged flow/surface inflow ratio, and therefore requires more calibration from the user especially when concerned with localised modelling of sewer-to-floodplain flow. Our findings provide novel evidence that shock capturing FV-based flood models are applicable to simulate localised sewer-to-floodplain flow interaction.

AB - This work offers a detailed validation of finite volume (FV) flood models in the case where horizontal floodplain flow is affected by sewer surcharge flow via a manhole. The FV numerical solution of the 2D shallow water equations is considered based on two approximate Riemann solvers, HLLC and Roe, on both quadrilateral structured and triangular unstructured mesh-types. The models are validated against a high resolution experimental data-set obtained using a physical model of a sewer system linked to a floodplain via a manhole. It was verified that the sensitivity of the models is inversely proportional to the surcharged flow/surface inflow ratio, and therefore requires more calibration from the user especially when concerned with localised modelling of sewer-to-floodplain flow. Our findings provide novel evidence that shock capturing FV-based flood models are applicable to simulate localised sewer-to-floodplain flow interaction.

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KW - sewer overflow

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KW - approximate Riemann solvers

KW - shallow water equations

KW - quadrilateral vs triangular meshes

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EP - 899

JO - Urban Water Journal

JF - Urban Water Journal

IS - 9

ER -

Validation of 2D shock capturing flood models around a surcharging manhole

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Keywords

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