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Flow induced vibrations, drag force, and pressure drop in conduits covered with biofilm

Record type: Article

Biofilm was grown in closed conduit reactors under turbulent flow conditions. Structural development of the biofilm suggests that individual microcolonies behave like blunt bodies shedding vortices. The microcolonies assumed elongated forms, termed ''streamers'', possibly because of an exerted pressure drag force. The streamers when entrained in the water flow vibrated rapidly dissipating kinetic energy from the bulk liquid. The energy was transferred through the biofilm causing the underlying microcolonies to oscillate. The measured pressure drop was partially attributed to the loss of energy due to these flow induced vibrations and oscillations.

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Citation

Lewandowski, Z. and Stoodley, P. (1995) Flow induced vibrations, drag force, and pressure drop in conduits covered with biofilm Water Science & Technology, 32, (8), pp. 19-26. (doi:10.1016/0273-1223(96)00003-0).

More information

Published date: 1995
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 157565
URI: http://eprints.soton.ac.uk/id/eprint/157565
ISSN: 0273-1223
PURE UUID: 361db914-0d92-4a95-b3a2-a1466cbca665

Catalogue record

Date deposited: 15 Jun 2010 11:02
Last modified: 18 Jul 2017 12:40

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Contributors

Author: Z. Lewandowski
Author: P. Stoodley

University divisions


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