## Abstract

Often, two different models are provided for the same sewer system, namely a hydrodynamic model for the hydraulic verification and a conceptual model for the verification of compliance with standards for combined sewer overflows (CSO). However, a combined verification using only one model has many advantages. For the necessary calculation of water levels for the hydraulic verification, only hydrodynamic models are applicable. Consequently, a hydrodynamic model has to be used for a combined verification if the same model should be used for both applications.

Often, the verification and assessment of CSOs asks for long-term simulation. The use of hydrodynamic models in combination with continuous simulation of a couple of years up to several decades regularly leads to unacceptable high computation times. As an alternative, a series of rainfall events can be used for the simulations instead of the precipitation continuum leading to dramatically reduced computational times.

This paper introduces a method to generate such a series of rainfall events. This series is optimized to match the overflow volumes of the continuous simulation and to reduce the overall computation time of the series simulation.

Often, the verification and assessment of CSOs asks for long-term simulation. The use of hydrodynamic models in combination with continuous simulation of a couple of years up to several decades regularly leads to unacceptable high computation times. As an alternative, a series of rainfall events can be used for the simulations instead of the precipitation continuum leading to dramatically reduced computational times.

This paper introduces a method to generate such a series of rainfall events. This series is optimized to match the overflow volumes of the continuous simulation and to reduce the overall computation time of the series simulation.

Originalsprache | englisch |
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Titel | Conference proceedings Novatech 2016 |

Publikationsstatus | Veröffentlicht - 2016 |

Veranstaltung | 9th International Conference NOVATECH 2016: Planning & technologies for sustainable urban water management - INSA Lyon, Lyon, Frankreich Dauer: 28 Jun 2016 → 1 Jul 2016 https://www.novatech.graie.org |

### Konferenz

Konferenz | 9th International Conference NOVATECH 2016 |
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Kurztitel | NOVATECH 2016 |

Land | Frankreich |

Ort | Lyon |

Zeitraum | 28/06/16 → 1/07/16 |

Internetadresse |

## Fields of Expertise

- Sustainable Systems