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S. Winkler, M. Bicher, F. Breitenecker:
"Convection-diffusion simulation in two different dimensions";
Vortrag: 22. Symposium Simulationstechnik, Berlin; 03.09.2014 - 05.09.2014; in: "Tagungsband ASIM 2014 22 Symposium Simulationstechnik", J. Wittmann, C. Deatcu (Hrg.); ARGESIM/ASIM, 43/1/Wien (2014), ISBN: 978-3-901608-44-5; S. 31 - 38.

This paper deals with the principle of groundwater pollution. The basic equation for pollution distribution
is the diffusion equation. In the natural but also economical science different kinds of this equation are
used. This work focuses on the convection-diffusion equation. Using this equation the diffusive behavior of the pollution influenced by a velocity field is described. Several approaches, ranging from analytical solutions to some chaotic particle movement approaches, are used for realization in one- and two-dimensional domains.
1 Introduction
In chemistry as well as in biology the reactiondiffusion
equation plays a very important role. This
equation can be used to recreate pattern formations of
a fish´ skin or cat´s fur. There are also many physical
applications of diffusion, e.g. the heat equation.
However, diffusion is also used to foresee the behavior
of buyers of stocks in the financial market. In the
following the convection-diffusion equation is used.

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