Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/90109

Title

CFD investigation of turbidity spikes for different velocity and particle load profiles in a horizontal pipe

Author(s)

Hossain, A.;  Naser, J.;  Imteaz, M.

Abstract

A comprehensive 3D numerical investigation of the behaviour of particles flowing through a horizontal pipe has been studied in this paper. The multiphase mixture module available in the computational fluid dynamics (CFD) model FLUENT 6.2 is used in this study. Five different time-dependent flows and particle-load profiles have been used to simulate particle flow behaviour though the pipeline. The deposition of particles along the pipe has been investigated. The effect of unsteady fluid velocity over particle loads has also been investigated. Results show that after a certain length of pipe and/or travel time, when the velocity becomes steady after a deceleration period, the pipe shear stress is strong enough to cause some particle deposition or rolling along the bottom surface of the pipe wall, creating a secondary accumulation of particles (called shoot). Various velocity and particle load profiles have been considered in the light of real phenomena occurring in Melbourne's South East Water Ltd distribution network. The paper is expected to help the water authorities in understanding the propagation of turbidity spikes in pipe networks.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Australian Journal of Water Resources, Vol. 14, no. 1 (2010), pp. 63-73

Publication year

2010

FOR Code(s)

0905 Civil Engineering

Keyword(s)

CFD;  Computational fluid dynamics;  Horizontal pipes;  Particle load;  Turbidity spikes;  Velocity

Publisher

Engineers Australia

ISSN

1324-1583

Publisher URL

http://www.engaust.com.au/

Copyright

Copyright © Institution of Engineers Australia 2010. Engineers Australia does not allow institutions to archive either the accepted manuscript or the published version of the article.

Peer reviewed