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A two-zone model for longitudinal dispersion in channels with idealized pools and riffles

Lookup NU author(s): Professor Eric Valentine, Dr David Swailes

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Publication metadata

Author(s): Swailes DC; Valentine EM; Ali Z

Publication type: Article

Publication status: Published

Journal: Journal of Hydrology And Hydromechanics

Year: 2002

Volume: 50

Issue: 2

Pages: 77-103

Print publication date: 01/04/2002

ISSN (print): 0042-790X

Publisher: Versita

Notes: The formulation of models for predicting the dispersal of contaminants released into natural river systems poses many problems. This work, which combines laboratory based experiments with fundamental model development and evaluation, addresses some of these issues: A range of experimental studies were performed to provide a large database for model calibration and validation. An important transport mechanism (dead-zone advection) was identified and incorporated into the modelling. A major output from the studies is the demonstrated effectiveness of the modelling approach for treating contaminant dispersal in channel flows with complex bed geometries characteristic of many natural water systems.

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