Finite element modelling of pollutants dispersion in the Tay estuary

Rahim Ghorashi, Navraj S. Hanspal, Naghmeh Keshavarzi-Roonizi, Vahid Nassehi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Finite element technique is used to model the concentration distribution of a reactive pollutant in the Tay estuary, Scotland. Considering the low concentrations of the pollutants which inevitably results from the mixing of relatively small amounts of contaminants with a large body of water the chemical reaction is modelled using first order kinetics. Tidal propagation within the Tay flow channel is characterised by significant phase lag between the mouth and interior reaches of the estuary. This results in continuous variations of the flow channel boundary during flood and ebb. To include this important feature in the model the shallow water equations representing the tidal flow in the Tay are solved in an Eulerian framework using the volume of fluid (VOF) approach. The simulated results are evaluated for theoretical and experimental consistency.
Original languageEnglish
Title of host publication2005 European Simulation and Modelling Conference, ESM 2005 - Proceedings|Eur. Simul. Model. Conf., ESM - Proc.
PublisherEurosis-ETI
Pages237-241
Number of pages4
Publication statusPublished - 2005
Event19th Annual European Simulation and Modelling Conference, ESM 2005 - Porto
Duration: 1 Jul 2005 → …
http://www.eurosis.org/conf/mesm/mesm2005/ESM2005FINPROG.pdf

Conference

Conference19th Annual European Simulation and Modelling Conference, ESM 2005
CityPorto
Period1/07/05 → …
Internet address

Keywords

  • Convection-dispersion equation
  • Finite elements
  • Free surface flow
  • Reactive pollutants
  • Shallow water equations
  • Tay estuary

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