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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
  • University of Sheffield
  • APEC Climate Center
  • Technische Universität München
  • University of Exeter

Research output: Contribution to journalArticlepeer-review

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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 languageEnglish
Pages (from-to)892-899
JournalUrban Water Journal
Volume14
Issue number9
Early online date20 Feb 2017
DOIs
Publication statusPublished - 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.

Funding

The research was supported by the UK Engineering and Physical Sciences Research Council [EP/K040405/1].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 6 - Clean Water and Sanitation
    SDG 6 Clean Water and Sanitation
  2. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure
  3. SDG 11 - Sustainable Cities and Communities
    SDG 11 Sustainable Cities and Communities
  4. SDG 13 - Climate Action
    SDG 13 Climate Action

Keywords

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

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