Sewer chamber design under critical conditions using computational fluid dynamics (CFD)
Date
2018-03
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Desalination and Water Treatment
Volume
108
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1
Ending Page
14
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Abstract
Transient sewage flow patterns inside a utility chamber are studied using open source computational fluid dynamics software, OpenFOAM. The solver used is based on Reynolds-averaged Navier–Stokes equations with κ – ∈ turbulence model. We found that there are two distinct flow regimes based on the inflow rate. For a low inflow rate, the sewage level does not exceed the outlet pipe, and a steady state is reached within a minute. For a high inflow rate, the tantalizing phenomenon is observed such that the sewage level periodically moves up and down passing the top of the outlet pipe. In this case, a steady state is intrinsically absent, and the sewage level continuously fluctuates for a long time. A chamber overflow occurs with a small outlet diameter and a fast inflow rate. Using Scotch algorithm parallel computation of an OpenFOAM solver, interFoam, has been efficiently conducted within a reasonable amount of time.
Description
Keywords
Computational fluid dynamics, OpenFOAM, Sewer design, Manhole flow, Urban runoff
Citation
Tyler Tsuchida, Joshua Lelemia Irvine, Siufung Tang, Jamie Nishikawa, Leighton Lum, Albert S. Kim, Sewer Chamber Design under Critical Conditions using Computational Fluid Dynamics (CFD), Desalination and Water Treatment, 108 (2018) 1–14, https://doi.org/10.5004/dwt.2018.22019.
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1 page
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Attribution-NonCommercial-NoDerivs 3.0 United States
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