Author(s)

Stefan Heinz and Dirk Roekaerts

Abstract

A new Lagrangian concept is presented for the calculation of reactive substance transport in the atmosphere, which treats arbitrary complicated chemical reactions. The essential difference to existing methods is the inclusion of the atmospheric turbulence in Lagrangian substance transport calculations. The realization of such simulations and the application to the calculation of a reactive plume are described. Apart from the solution of the chemistry problem, this approach offers also an accurate and efficient method to assess the influence of mixing effects on mean conversion rates of species. Such effects are often neglected in other methods due to conceptual and computational problems of their

Keywords