Numerical Simulations of Wind Induced Particle Contamination in Gypsum Landfill Surroundings |
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Authors: | Matja? Hriber?ek Niko Samec Jure Ravnik Matej Zadravec |
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Institution: | (1) Faculty of Mechanical Engineering, University of Maribor, Smetanova ul.17, SI-2000 Maribor, Slovenia; |
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Abstract: | The contribution presents numerical simulation of gypsum particles, lifting from a gypsum landfill. First, particle characteristics
are presented, resulting from different technologies of gypsum depositing. Next, a laboratory experiment parameter validation
tests are described, which served as a means of determination of mass flow of particles from the landfill. The background
of the numerical simulations, used in the assessment of landfill impact on the environment, is also described. Simulations
consist of two parts: simulation of a long term impact of the particles on the surrounding area, performed by implementation
of the Gaussian dispersion model based computer code ISC3, and second, a CFD based simulation for assessing the flow and mass
concentration fields in the vicinity of the landfill for several pre-selected flow cases. The results of both computational
approaches are presented and compared. In the conclusions, a relation of the simulation results with existing environmental
pollution levels is made, and recommendations for landfill management are drawn. |
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