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  3. Vol. 6 No. 2 (2002)
  4. NUMERICAL SIMULATIONS OF AIR-POLLUTANTS IN WINDY ATMOSPHERE

NUMERICAL SIMULATIONS OF AIR-POLLUTANTS IN WINDY ATMOSPHERE

Abstract

Spreading of gaseous pollutants in windy atmosphere is considered by means of numerical simulations of two-dimensional hydrodynamic equations. The parametric studies, which are performed for various magnitudes of a horizontal wind speed, reveal a plume development and a generation of vortices which occur as a result of Kelvin-Helmholtz instabilities. Mass density profiles exhibit high level of spatial and temporal variability. A spectral analysis of these profiles provides variable circular frequency and a wave number.

Keywords:

environmental protection engineering, transport of air-pollutants, plume structure, turbulence

Details

Issue
Vol. 6 No. 2 (2002)
Section
Research article
Published
2002-06-30
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Author Biographies

JERZY K. MICHALCZYK,
Technical University of Lublin, Department of Environmental Physics, Institute of Environmental Protection Engineering



KRZYSZTOF MURAWSKI,
Maria Curie-Skłodowska University, Department of the Complex Physical Systems; Technical University of Lublin, Department of Environmental Physics, Institute of Environmental Protection Engineering



Authors

  • JERZY K. MICHALCZYK

    Technical University of Lublin, Department of Environmental Physics, Institute of Environmental Protection Engineering

  • KRZYSZTOF MURAWSKI

    Maria Curie-Skłodowska University, Department of the Complex Physical Systems; Technical University of Lublin, Department of Environmental Physics, Institute of Environmental Protection Engineering

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