Deterministic particle tracking simulation of pollutant discharges in rivers and estuaries

Original Article
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Abstract

A two-dimensional deterministic particle tracking model, in which the anisotropic-dispersive process is described by a particle strength exchange scheme, is established for the simulation of pollutant transport in vertically well-mixed rivers and estuaries. By simulating two benchmark problems with analytic solutions, the PSE scheme is shown to be accurate even if the anisotropic ratio of dispersion coefficients is very high. Further simulations of two specific problems concerning the optimal effluent discharge location and procedure are presented. The major conclusion is that in a tidal estuary with a relatively large fresh-water flow, setting the discharge position at the mixing center and making the discharge rate proportional to flow speed may minimize the peaks of concentration.

Keywords

Dispersion Estuary Particle methods Particle strength exchange High anisotropy ratio 

Notes

Acknowledgements

This work was supported by the Ministry of Science and Technology of the Republic of China, Taiwan, under Contract No. NSC 101-2221-E-033-078.

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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringChung Yuan Christian UniversityTaoyuan CityTaiwan, ROC

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