Modelling sewer discharge via displacement of manhole covers during flood events using 1D/2D SIPSON/P-DWave dual drainage simulations
Chen, Albert S.
Urban Water Journal
Taylor & Francis
Reason for embargo
In urban areas, overloaded sewers may result in surcharge that causes surface flooding. The overflow from sewer systems mainly starts at the inlets until the pressure head in the manhole is high enough to lift up its cover, at which stage the surcharged flow may be discharged via the gap between the bottom of the manhole cover and the ground surface. In this paper, we propose a new approach to simulate such a dynamic between the sewer and the surface flow in coupled surface and sewer flow modelling. Two case studies are employed to demonstrate the differences between the new linking model and the traditional model that simplifies the process. The results show that the new approach is capable of describing the physical phenomena when manhole covers restrict the drainage flow from the surface to the sewer network and reduce the surcharge flow and vice versa.
DFG (Deutsche Forschungsgemeinschaft)
This is an Accepted Manuscript of an article published by Taylor & Francis in Urban Water Journal (2015), available online: http://www.tandfonline.com/10.1080/1573062X.2015.1041991
Published online: 05 June 2015