A coupled finite difference - fluid element tracking method for modelling horizontal mass transport in shallow lakes

P. Bakonyi, J. Jozsa

Research output: Contribution to journalArticle

Abstract

Wind-induced horizontal transport phenomena have been analysed in shallow lakes with a coupled 2-D circulation-fluid element tracking model. Advective currents are calculated by a depth-integrated ADI-type finite difference model. In subdomains the influence of small scale bottom topography on the velocities is taken into account by local grid refinement. To avoid numerical diffusion and to obtain qualitative results fast and easily, transport simulation is based on the Lagrangian Fluid Element Tracking method, modelling the paths of marked fluid elements in the advective-diffusive velocity field. Diffusive velocity fluctuations are generated by Monte Carlo technique. As possible applications the simulation of storm-induced displacement of large pollution clouds, water exchange of bays and the mixing of inflow water are given in Lake Balaton. -Authors

Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalUnknown Journal
Publication statusPublished - Jan 1 1988

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ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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