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Physical Modeling of Emissions from Naturally Ventilated Underground Parking Garages

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Abstract

The dispersion of pollutants from naturally ventilated underground parking garages has been studied in a boundary layer wind tunnel. Two idealized model setups have been analysed, one was simulating pollutant dispersion around an isolated rectangular building and one was representing dispersion in a finite array of idealized building blocks. Flow and dispersion close to modelled ground level emission sources was measured. The results illustrate the complexity of the flow around buildings and provide insight in pollutant transport from ground level sources located directly on building surfaces. As a result, areas critical with respect to high pollutant concentrations could be visualized. Particularly, the results show high concentration gradients on the surface of the buildings equipped with modelled emission sources. Inside the boundary layers on the building walls, a significant amount of pollutants is transported to upwind locations on the surface of the building. The paper documents the potential of physical modelling to be used for the simulation and measurement of dispersion close to emission sources and within complex building arrangements.

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Authors and Affiliations

  1. Meteorological Institute, University of Hamburg, Bundesstraße 55, D-20146, Hamburg, Germany

    Bernd Leitl

  2. Meteorological Institute, University of Hamburg, Bundesstraße 55, D-20146, Hamburg, Germany

    Michael Schatzmann

Authors
  1. Bernd Leitl
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  2. Michael Schatzmann
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Leitl, B., Schatzmann, M. Physical Modeling of Emissions from Naturally Ventilated Underground Parking Garages. Environ Monit Assess 65, 221–229 (2000). https://doi.org/10.1023/A:1006408411557

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  • DOI: https://doi.org/10.1023/A:1006408411557

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