Semi-analytical model for pollution dispersion in the planetary boundary layer

作者: D MOREIRA , U RIZZA , M VILHENA , A GOULART

DOI: 10.1016/J.ATMOSENV.2005.01.020

关键词: Eddy diffusionMeteorologyComputer simulationSource codeConvection–diffusion equationAtmospheric dispersion modelingComputer sciencePlanetary boundary layerApplied mathematicsWind speedLaplace transform

摘要: Abstract In this paper a time dependent semi-analytical model is discussed which overcomes the limits of existing analytical ones. This compared both with results numerical and experimental data in air quality applications. approach based on Laplace transform technique, can include advanced eddy diffusivity wind profiles. The algorithm utilizes mixed cubic-spline/Crank–Nicholson method within locally one-dimensional (LOD) technique. two approaches produce comparable when considering most important quantity air-pollution application, that ground-level concentration distribution. These are quite good for as its computer code runs much faster than model. promising because computer-based technique may be used quantitative qualitative estimations pollutant

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