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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/40228
Record Status
Checked
Record Id
40228
Title
Modelling depth-integrated pollution dispersion in the Gulf of Thermaikos using a Lagrangian particle technique
Contributors
RW Barber (CCLRC Daresbury Lab.)
,
NP Volakos
Abstract
A two-dimensional Lagrangian particle technique is described for simulating depth-integrated contaminant dispersion in well-mixed estuaries and coastal seas. The governing advection-diffusion equation is first rearranged into a Fokker- Planck expression, allowing the implementation of a consistent random-walk method for simulating spatially variable diffusion. The paper then describes a novel particle-tracking algorithm that can be used with arbitrary non-orthogonal boundary-fitted coordinate systems. The Lagrangian particle approach is perfectly conservative and completely free from numerical diffusion. In addition, this method is able to preserve steep concentration fronts allowing accurate modelling of point sources of pollution. The capabilities of the numerical model are demonstrated by simulating wind-induced circulation and pollutant transport within the Gulf of Thermaikos, a semi-enclosed bay close to the City of Thessaloniki in northern Greece.
Organisation
CCLRC
,
CSE
,
CSE-CEG
Keywords
Funding Information
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Language
English (EN)
Type
Details
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Year
Journal Article
WIT Transactions on Ecology and the Environment 80 (2005): 173-184.
https://www.witpr…environment/80/14531
2005
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