Volume 18, Issue No.1


CFD, model, gas, Pollutant, Gravitational forces, Ice stadium.


The article presents the results of a numerical CFD model of gas ammonia plume motion and dispersion after an accidental release from a real ice stadium situated in an urban area. The CFD analysis was performed using the ANSYS Fluent 14.0 for two seasons and eight wind directions. Sixteen tasks emerged, the results of which can define the influence of meteorological conditions (wind direction, wind speed, temperature, etc.) and surrounding buildings on the motion and dispersion of pollutant plume. The simulation was performed with real local meteorological data. The numerical model had been verified by tasks performed in a low-speed wind tunnel. The results show that the influence of meteorological conditions, especiallythe influence of calendar seasons, on the pollutant plume propagation can be very pronounced. Principles and conclusions drawn from this and similar analyses may have great benefits for emergency planning in complex urban areas.


Acta Mechanica Slovaca. Volume 18, Issue 1, Pages 64–70, ISSN 1335-2393


  CFD Analysis of the Influence of Meteorological ...


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[3] Kozubková, M. (2008). Modeling of Fluid Flow, FLUENT, CFX. VSB - Technical University of Ostrava, Ostrava.
[4] Stull, R.B. (1994). An Introduction to Boundary Layer Meteorology. Kluwer Academic Publishers, Dordrecht.
[5] Zavila, O. (2007). Mathematical Modelling of Turbulent Flow, Heat Transfer and Pollutant Motion in Tunnels (Ph.D. Thesis). VSB - Technical University of Ostrava, Ostrava.
[6] Zavila, O. (2011). CFD simulation of gas pollutant motion and dispersion problem in wind tunnel with respect to Froude number. International Conference on Numerical Analysis and Applied Mathematics-2011, AIP Conference Proceedings 1389, pp. 74-77.
[7] Zavila, O. (2012). Physical Modelling of Gas Pollutant Motion in the Atmosphere. Edited by C. Liu, Advances in Modeling of Fluid Dynamics. Rijeka, pp. 51-78.

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