Cowle, MW, Babatunde, AO orcid.org/0000-0003-4730-9673 and Bockelmann-Evans, BN (2017) The frictional resistance induced by bacterial based biofouling in drainage pipelines. Journal of Hydraulic Research, 55 (2). pp. 269-283. ISSN 0022-1686
Abstract
This paper aims at improving the current understanding of bacterial-based biofouling in drainage pipelines. Using a purpose built pipeline facility consisting of a high density polyethylene pipe, biofilms were incubated with synthetic wastewater for 20 days at three steady-state flow regimes. The results obtained have shown that the presence of a biofilm can cause a significant increase in frictional resistance. The magnitude of a biofilm’s frictional resistance is a function of the shear conditions under which the biofilm is incubated. In particular, the lower the conditioning shear, the higher the frictional resistance imparted by the biofilm. This is attributed to the thickness and roughness distribution induced by such conditions, and it serves to highlight the problem of characterizing a biofilm’s effective roughness using a single roughness scale. The study has also supported the earlier funding that the von Kármán constant is non-universal, and is dependent on Reynolds number for biofouled pipes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Hydraulic Research on 7 September 2016, available online: http://dx.doi.org/10.1080/00221686.2016.1212411 |
Keywords: | Bacterial based biofouling, biofilm, drainage pipelines, equivalent roughness, flows in pipes, von Kármán constant, |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Sep 2016 11:48 |
Last Modified: | 27 Jul 2018 15:30 |
Published Version: | http://dx.doi.org/10.1080/00221686.2016.1212411 |
Status: | Published |
Publisher: | Taylor & Francis |
Identification Number: | 10.1080/00221686.2016.1212411 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105259 |