Unsteady thermal convection in the North-East German Basin
Bayer, Ulf
Clausnitzer, Volker
Fuhrmann, Jürgen
Bayer, Ulf; Clausnitzer, Volker; Fuhrmann, Jürgen, 2002: Unsteady thermal convection in the North-East German Basin. In: Preprint/Weierstraß-Institut für Angewandte Analysis und Stochastik; 741, DOI: 10.23689/fidgeo-644.
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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.