Articles | Volume 3, issue 1
01 Apr 2009
 | 01 Apr 2009

Selected results of a model validation exercise

M. Piringer and K. Baumann-Stanzer

Abstract. The concentration fields calculated with three Gaussian models and one Lagrangian dispersion model are validated against a set of SF6 concentration data provided by the German environmental programme BWPLUS. The source was a pig fattening unit in fairly flat terrain. The results reveal that, in flat terrain with steady undisturbed flow, the use of Gauss models is still justified, whereas Lagrangian models should be used whenever the flow is modified by obstacles or topography.