WIAS Preprint No. 741, (2002)

Unsteady thermal convection in the North-East-German basin



Authors

  • Bayer, Ulf
  • Clausnitzer, Volker
  • Fuhrmann, Jürgen
    ORCID: 0000-0003-4432-2434

2010 Mathematics Subject Classification

  • 65N99 76R10

2008 Physics and Astronomy Classification Scheme

  • 91.35.Dc 91.95.Gf

Keywords

  • Thermal Convection, Finite Volumes, Nonlinear Time Series Analysis

Abstract

We describe a Voronoi box based finite volume method for the numerical simulation of thermal convection in sedimental basins. The method shows a temperature maximum principle and consistent velocity approximation. We present results of simulation runs in vertical slices of the North-East German basin. These indicate that the system is far from a stationary state, it shows quasi-periodic, and possibly chaotic behaviour. The chaos hypothesis is formulated based on the analysis of the Nusselt number time series obtaind from simulation runs.

Download Documents