Title: Large-eddy simulation and practical models

Authors: I. Bouwmans, J.P. Meeder, F.T.M. Nieuwstadt

Addresses: Interduct (Delft University Clean Technology Institute), Rotterdamseweg 145, 2628 AL Delft, The Netherlands. ' Laboratory for Aero and Hydrodynamics, Delft University of Technology, Rotterdamseweg 145, 2628 AL Delft, The Netherlands. ' Laboratory for Aero and Hydrodynamics, Delft University of Technology, Rotterdamseweg 145, 2628 AL Delft, The Netherlands

Abstract: A large-eddy simulation for a point source emission has been compared with four practical dispersion models suitable for regulatory purposes, and with atmospheric measurements. The large-eddy simulation calculates the turbulent velocity field in detail and uses this to solve the conservation equation for the pollutant. The practical models are variants of the Gaussian plume model. The measurements are taken from the Copenhagen dispersion dataset. The measured values lie roughly in the middle of the broad range of concentrations that follows from the models.

Keywords: atmospheric dispersion; Gaussian plume model; large eddy simulation; model comparison; model validation; plume dispersion; environmental impact assessment; point source emission; modelling; turbulent velocity; environmental pollution; air pollution.

DOI: 10.1504/IJEP.1995.028380

International Journal of Environment and Pollution, 1995 Vol.5 No.4/5/6, pp.331 - 337

Published online: 17 Sep 2009 *

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