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Manhole Storage Capacity Influence on Transient Flow Modeling during Storm Sewer Flooding Event

Mathurin Daynou, Musandji Fuamba and Tew-Fik Mahdi (2009)
Ecole Polytechnique de Montreal, Canada
DOI: https://doi.org/10.14796/JWMM.R235-16
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Abstract

Drainage systems are designed to quickly convey rainwater from urban areas to areas of natural flow (rivers, streams, lakes, etc). Hence, they are sized with the assumption of steady free surface flow. With the frequent flooding of storm sewers and corresponding damage to public and private infrastructure (Schmitt et al. 2004), numerical modeling of transient flow has now become unavoidable. Several models of transient flow are available, each with its advantages and limitations. This chapter examines the impact of the inclusion of manhole size on the filling celerity of urban drainage systems. It is assumed that the pressurization of the drainage network starts with the rapid filling of a manhole, i.e. as soon as the water level in the manhole reaches the crown of the pipe being filled.

Based on this assumption, a filling model is built to analyze the influence of manhole capacity on the propagation of the surge wave. This model uses the method of characteristics within the conduit and an innovative method based on gravity waves. To evaluate the impact of manhole size on the filling speed of the Storm Water System (SWS), the proposed methodology is applied to a theoretical case study. Results show that manhole size can accelerate or reduce the filling speed of connecting conduits.

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PAPER INFO

Identification

CHI ref #: R235-16 800
Volume: 17
DOI: https://doi.org/10.14796/JWMM.R235-16
Cite as: JWMM 17: R235-16

Publication History

Received: N/A
First decision: N/A
Accepted: N/A
Published: February 15, 2009

Status

# reviewers: 2
Version: Final published

Copyright

© 2009 CHI.
Some rights reserved.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

All papers published in the JWMM are licensed under a Creative Commons Attribution 4.0 International License (CC BY).

JWMM content can be downloaded, printed, copied, distributed, and linked-to, when providing full attribution to both the author/s and JWMM.


AUTHORS

Mathurin Daynou

Ecole Polytechnique de Montreal, Saint-Hubert, QC, Canada
ORCiD:

Musandji Fuamba

Ecole Polytechnique de Montreal, Montreal, QC, Canada
ORCiD:

Tew-Fik Mahdi

Ecole Polytechnique de Montreal, Montreal, QC, Canada
ORCiD:


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creative commons license   JWMM content is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0 DEED)


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