Numerical modelling of local scour in rivers using fluent 6.2

Master Thesis

2005

Permanent link to this Item
http://hdl.handle.net/11427/5057
Files
thesis_ebe_2005_cunninghame_m.pdf (7.81 MB)
Authors
Cunninghame, Margaret
Supervisors
Armitage, Neil
Journal Title
Link to Journal
Journal ISSN
Volume Title
Publisher
Publisher

University of Cape Town

Department
Department of Civil Engineering
Faculty
Faculty of Engineering and the Built Environment
License
Series
Abstract
Scour and deposition are natural processes which take place in a river as the stream profile adjusts to changing flow rates, sediment loads and other environmental conditions. Man-made obstacles to the stream flow such as bridge piers and abutments and other hydraulic structures alter flow patterns causing local scouring and deposition. Excessive scour undermines the foundations of bridges and other fluvial structures which may ultimately cause their collapse. Reliable methods are needed to model the complex flow features at bridge piers and abutments and hence predict the associated patterns of local scour. Empirical formulae are notoriously inconsistent in their predictions of local scour depth (Johnson, 1995) while physical modelling is time-consuming and therefore expensive.
Description

Includes bibliographical references.

Keywords
Civil Engineering

Reference:

Cunninghame, M. 2005. Numerical modelling of local scour in rivers using fluent 6.2. University of Cape Town.

Collections
Masters